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Dr. Chrysoula I. Liakou MD, PhD
- Treated online: Yes, usually. Constipation is assessed by video from the pattern, diet and medicines, and laxatives prescribed in the guideline order where they help; severe constant pain with vomiting and a swollen belly, or blood, weight loss or a new change after 50, need in-person care.
- What it is: fewer than three bowel movements a week, or hard stools that need straining, in a person whose own normal is different; it affects about 1 in 7 adults, women twice as often as men, and most older adults at some point.
- Commonest causes: too little fibre, fluid or exercise, ignoring the urge, travel and routine change, pregnancy, and medicines: opioid painkillers including codeine constipate almost everyone who takes them regularly, and iron tablets, some antidepressants and antacids are close behind.
- Laxative order: bulk-forming fibre first with plenty of fluid, then a macrogol-type osmotic laxative, then a short course of a stimulant if stools are soft but not moving; each takes 1 to 3 days to work, and stimulants are for days, not months, unless reviewed.
- How long: simple constipation clears within 3 to 5 days of fluids, fibre and the first laxative; a new change in bowel habit lasting more than 4 weeks, especially from 50 onwards, is a reason for tests rather than more laxatives.
- Emergency: call 112 for constipation with severe constant abdominal pain, repeated vomiting and a swollen tense belly with no stool or wind passing, which can be a blockage, or if you feel faint or confused.
See a doctor in person, rather than booking a video appointment, if constipation comes with severe constant abdominal pain, repeated vomiting, or a swollen tense belly with no stool or wind passing: that pattern suggests a blockage, and it is an emergency, so call 112. Blood mixed into your stool, black tar-like stools, unexplained weight loss, or a new persistent change in bowel habit, especially from about 50 onwards, needs prompt in-person tests.
Can an online doctor treat constipation?
Yes, in most cases. On Mobi Doctor, a licensed doctor assesses constipation by video: your normal pattern, what changed, your diet, fluids and medicines, and any warning signs. The doctor then treats the cause and, where needed, prescribes laxatives in the guideline order. Red flags, and suspected blockage or impaction, are routed to in-person care instead.
Constipation is genuinely well suited to video care because the assessment is history: what changed, when, and why. The consultation earns its keep in two places most self-treatment misses: spotting the medicine or condition quietly causing the problem, and giving you a stepwise plan with an exit, so laxatives are a bridge back to normal rather than a permanent fixture. The honest limit is examination: where impaction, severe pain or a mass is suspected, hands are needed before stronger treatment is safe.
Listen: Constipation Treatment Online
The audio version of this topic from the Mobi Doctor podcast. Open the episode.
How an online consultation helps with constipation
- The cause found first: medicines are one of the most common triggers, opioid painkillers, iron tablets, some antidepressants and blood pressure treatments among them, alongside low fibre, low fluids, thyroid problems and routine change. Treating the cause beats stacking laxatives on top of it.
- The laxative ladder, explained honestly: which type to start with, what to add if it fails, how long to use it and how to step off, instead of the pharmacy roulette most people are left to play alone.
- Red flags actively screened: bleeding, weight loss, anaemia symptoms and a genuinely changed habit are asked about directly, and investigated promptly when present, not explained away.
- A plan with an exit: you leave with doses, a review date and a step-down strategy, because the goal is a bowel that works without help, wherever that is achievable.
What the doctor checks in an online constipation consultation
Constipation means different things to different people, so the consultation starts by pinning yours down. The doctor will typically work through:
- What constipated means for you: fewer bowel movements than your normal, hard or pellet-like stools, straining, pain, or the feeling of incomplete emptying. Each points the plan differently.
- The timeline: lifelong tendency, weeks of change, or sudden arrest; and what changed around the same time, such as diet, travel, illness, or a new medicine.
- Your full medicine list: including over-the-counter codeine-containing painkillers, iron, and antacids, which are frequent and fixable culprits.[1]
- Diet, fluids and movement: fibre in practice rather than in theory, how much you actually drink, and how much of the day is sedentary.
- Routine and behaviour: ignored urges, rushed mornings, unfamiliar toilets when travelling, and shift work, all of which suppress the bowel reflexes.
- Screening for causes: tiredness, cold intolerance and weight gain (thyroid), thirst and urination (diabetes), and neurological symptoms, which redirect the work-up.
- Red flags: blood in or on the stool, black stools, unexplained weight loss, anaemia symptoms, severe pain, vomiting, and family history of bowel cancer.[2]
- Straining mechanics: prolonged straining or needing manual pressure suggests a pelvic floor problem, which laxatives alone will not fix and which may need in-person assessment.
- Pregnancy: common, hormone-driven, and treated with its own preferred options.
What causes constipation?
Constipation happens when stool moves too slowly through the colon or is difficult to pass: too little fibre or fluid, inactivity, ignoring the urge, routine change and travel are everyday drivers. Medicines are a major cause, opioids especially, and underactive thyroid, diabetes and irritable bowel syndrome contribute; often no single cause is found.[1]
Everyday drivers
The colon is a creature of habit. It responds to food volume and fibre, to hydration, to movement, and above all to routine: the strongest natural trigger for a bowel movement is the reflex that follows a meal, particularly breakfast. Skip breakfast, sit all day, sip too little and suppress the urge because the moment is inconvenient, and the system slows within days. Travel compresses all of these at once, which is why constipation is the travelling companion nobody advertises.
Medicines and conditions
Opioid painkillers, including everyday codeine combinations, constipate almost everyone who takes them regularly; iron tablets, some antidepressants, some blood pressure medicines and calcium- or aluminium-based antacids are close behind.[1] Among conditions, an underactive thyroid, diabetes and neurological disease all slow the bowel, and irritable bowel syndrome includes a constipation-predominant form in which cramping, bloating and hard stools travel together; when aching in the lower abdomen dominates the picture, the colon pain page explains how doctors read it. Pregnancy slows the gut hormonally from early on. And in many people, particularly women, no cause is ever named: the bowel is simply slow, which is a real pattern that still responds to structured treatment.
Which laxative should I take first?
Guidelines suggest a stepwise order. Start with a bulk-forming laxative such as ispaghula while fixing fibre and fluids; add or switch to an osmotic laxative such as macrogol if stools stay hard; add a stimulant such as senna or bisacodyl if stools are soft but still difficult to pass. Use short courses and review.[1]
Some honesty about laxatives, because folklore runs both directions. They are not dangerous when used sensibly, and nobody should sit in discomfort out of vague fear of dependence. But the order matters (bulk needs fluid to work; osmotics soften; stimulants push), doses should be the lowest that works, and courses should have a review date, then a slow step-down rather than an abrupt stop. Long-term daily stimulant use without review is the pattern to avoid. Two groups are the exception, not the rule: people on ongoing opioids, and some older adults, genuinely need maintained laxatives, openly and under review, and that is good medicine rather than failure.
How can I control constipation without laxatives?
Routine does more than any supplement: sit on the toilet unhurried for a few minutes after breakfast, when the bowel reflex is strongest, and never suppress an urge you can answer. Raise your knees above hip level with a footstool, which straightens the anatomy and reduces straining. Build fibre up gradually, aiming at wholegrains, fruit, vegetables and pulses, with kiwifruit and prunes as pleasantly evidence-backed options, and drink enough that your urine runs pale. Walk daily.[4] Given two to four weeks, this combination controls constipation for many people without a single tablet, and it remains the foundation even when laxatives are added.
When should I worry about constipation?
Worry when constipation is a genuine change that persists beyond about 4 weeks despite sensible measures, or arrives with blood in the stool, black stools, unexplained weight loss, anaemia symptoms such as unusual tiredness or breathlessness, or a family history of bowel cancer, particularly from about 50 onwards. That combination needs prompt in-person tests, not a stronger laxative.[2]
The emergency version is different and faster: constipation with severe constant pain, vomiting, and a swollen tense belly passing neither stool nor wind suggests obstruction, and impacted stool with overflow (unexpected leakage of loose stool around a blockage, common in older adults and easily mistaken for simple diarrhoea) also needs examination rather than anti-diarrhoeals, which make it worse. Both are in-person problems the same day.
Is my constipation suitable for online care?
Most constipation is, and the plan differs by pattern. Here is how doctors sort it.
Swipe sideways to compare →
| Constipation pattern | Likely first step | Suitable for online care? | When referral or in-person care is needed |
|---|---|---|---|
| Recent constipation after diet, travel or routine change | Fluids, fibre, movement and toilet routine; a bulk-forming laxative if needed[1] | Usually yes, often without a prescription | Not settling within about 2 weeks, or any red flag |
| Ongoing constipation in an otherwise well adult | Stepwise laxative plan with a review date and a step-down strategy | Usually yes | No response to combined laxatives at proper doses, or new red flags |
| Constipation on opioids, iron or other constipating medicines | Medication review plus a suitable laxative from the start | Usually yes | Where the underlying prescription needs an in-person review to change |
| Constipation alternating with diarrhoea, with bloating and cramps | Assessment for irritable bowel syndrome[3] | Usually yes | Bleeding, weight loss, night-time symptoms, or onset from about 50 onwards |
| Constipation with bleeding, weight loss, vomiting or severe pain | In-person assessment and tests[2] | No | Same day for pain and vomiting; call 112 for a suspected blockage |
Not sure which step you are on? A doctor can tell you in one consultation.
See available times →Treatment options for constipation
What you can do yourself
Start with the mechanics: gradual fibre increase with plenty of fluid (fibre without water can worsen things), a daily walk, the after-breakfast toilet routine, and a footstool to improve position. Answer urges promptly. Check your own shelf for quiet saboteurs, especially codeine-containing painkillers taken for something else. Bulk-forming laxatives such as ispaghula are available from pharmacies and suit mild, recent constipation; give any change a fair two weeks before judging it. What does not help: dramatic colon-cleanse products and prolonged straining, which achieves little beyond haemorrhoids.
Prescription treatment
A prescription is never issued without a consultation. After assessment, the doctor works the ladder with you: macrogol-type osmotic laxatives to soften and get things moving, a stimulant added short term where stools are soft but stuck, and doses adjusted rather than multiplied.[1] Opioid-induced constipation gets a laxative planned alongside the painkiller, not after it fails, and where an opioid or another constipating medicine should change, the doctor coordinates rather than overrides your regular prescriber. For chronic constipation that has genuinely failed properly dosed laxatives, further options such as prucalopride exist; they belong after honest failure of the basics, sometimes with specialist input.[5] In pregnancy, bulk-forming and osmotic laxatives are the usual choices, with stimulants used more cautiously, decided case by case. Suspected impaction is examined in person before stronger treatment, because the wrong medicine at the wrong moment makes it worse.
When constipation is treated online, and when you need in-person care
Treated online: recent and ongoing constipation in adults, with a stepwise plan and review; medicine-related constipation, including on opioids and iron; constipation-predominant irritable bowel patterns; pregnancy constipation with its preferred options; and step-down planning for people stuck on daily laxatives who want a route off.
In-person care: suspected obstruction or faecal impaction, in person the same day, with 112 for the full-blown pattern; the red-flag cluster, bleeding, black stools, weight loss, anaemia symptoms, or a persistent new change in habit especially from about 50 onwards, promptly for examination and bowel tests with a referral letter written in the consultation;[2] suspected pelvic floor dysfunction, for in-person assessment and, where available, specialist physiotherapy; and children with significant constipation, whose treatment follows its own pathway and doses and is best managed by a doctor who can examine them.
When to get in-person care
Go to emergency care now if constipation comes with severe constant abdominal pain, repeated vomiting, or a swollen tense belly with no stool or wind passing: that suggests a bowel blockage. Call 112 if you also feel faint, confused, or are in overwhelming pain. Blood in the stool with light-headedness, or black tar-like stools, needs urgent in-person assessment the same day.
Treating constipation at home: what helps and what does not
Home care fixes most constipation: more fibre spread through the day, more water, regular movement, and giving yourself unhurried time on the toilet when the urge comes rather than postponing it. Short-term pharmacy laxatives are a reasonable bridge while the routine changes take effect.
What home care cannot do: it cannot rule out the causes that matter. Constipation that persists beyond about three weeks despite genuine changes, keeps returning, or arrives with blood in the stool, unexplained weight loss or a lasting change in bowel habit needs a doctor rather than a stronger laxative, because those patterns occasionally signal something that should not wait.
Staying at home is the point of Mobi Doctor: you can see a licensed doctor over video, usually within 15 minutes, with no waiting room. If medication is the right answer, the prescription follows. Book a video consultation: the exact price is shown before you pay.
How Mobi Doctor works
- Book a time that suits you: open daily 7am–11pm CET. You can see a doctor over video, usually within 15 minutes. No subscription, exact price up front.
- Speak to a licensed doctor about constipation: a private video call: you describe what you feel, the doctor asks what matters, and you agree the right plan together.
- Leave with your plan: everything agreed before you hang up: your plan, and a prescription to use at a pharmacy near you where medication is clinically right for you. If your doctor decides you need to be seen in person, you get a full refund.
No sign-up needed
Not sure it’s constipation? Tick every symptom you have to see each condition page that mentions it. It finds the right page, not a diagnosis: a doctor gives you that on a video call.
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Frequently asked questions about constipation
What is constipation, and what causes it?
Constipation is passing stools less often than is normal for you, or stools that are hard, dry and need straining. It is caused by too little fibre, fluid or movement, ignoring the urge to go, travel, stress and routine change, pregnancy, an underactive thyroid, irritable bowel syndrome, and medicines such as codeine and other opioids, iron, some antidepressants and calcium-based antacids; in a minority a narrowed bowel or nerve problem is responsible.
What are the symptoms of constipation?
Constipation shows as fewer bowel movements than usual, hard lumpy or pellet-like stools, straining, a feeling that the bowel has not emptied, bloating, a dull lower abdominal ache, and sometimes small amounts of bright red blood on the paper from a tear. Overflow of loose stool around a hard mass, nausea, or loss of appetite mean constipation has gone on too long and needs clearing properly.
Can an online doctor prescribe laxatives in Europe?
Yes, after a video assessment, the doctor can prescribe laxatives for constipation in the guideline order, from bulk-forming fibre and macrogol-type osmotic laxatives to short-term stimulants, matched to your pattern and medicines, with the prescription sent to a pharmacy near you. A prescription is never issued without a consultation, and constipation with warning signs is sent for in-person tests first.
How can I control constipation without laxatives?
Build a routine the bowel can rely on: unhurried toilet time after breakfast, urges answered promptly, a footstool to raise the knees, fibre increased gradually to about 30 g a day with plenty of fluid, and a daily walk. Kiwifruit and prunes are simple evidence-backed additions, and reviewing a constipating medicine with the doctor often does more than any diet change.
How long is too long to go without a bowel movement?
There is no single number: anywhere from three times a day to three times a week can be normal, and change from your own pattern matters more than any rule. As a guide, going beyond about a week despite fluids, fibre and a laxative, or constipation with pain, vomiting or a swollen belly, needs a doctor; a persistent new pattern lasting over four weeks needs tests.
Are laxatives safe to use long term?
Used correctly, with review, yes for some people: those on ongoing opioid painkillers, some older adults and people with slow-transit constipation need them, and that is appropriate treatment. Bulk-forming and osmotic laxatives are safe for long-term use; what is worth avoiding is unreviewed daily stimulant use for years by default, which is better replaced with a plan the doctor checks every few months.
Is constipation a sign of bowel cancer?
On its own, usually not; constipation is extremely common and overwhelmingly benign. The picture changes when it is a persistent new change lasting over four weeks, or arrives with blood mixed into the stool, black stools, unexplained weight loss, anaemia or a strong family history, especially from about 50 onwards. That combination needs prompt in-person tests, not a stronger laxative.
What helps constipation in pregnancy?
Fluids, gradual fibre and gentle activity are the first steps for constipation in pregnancy, which affects up to 4 in 10 women, driven by hormones that slow the gut plus iron supplements. Where a laxative is needed, bulk-forming and macrogol-type osmotic options are considered suitable and are prescribed after a consultation; stimulant laxatives are kept for short courses, and changing the iron preparation often helps.
How long does constipation take to clear?
Simple constipation usually clears within three to five days of more fluid and fibre and the first laxative: bulk-forming laxatives take two to three days, osmotic ones one to three days, and stimulants work overnight. A bowel that has been loaded for weeks can take a week or two of regular treatment to empty and reset, and the routine then continues so the constipation does not return.
What can I do at home for constipation?
At home, drink 1.5 to 2 litres of fluid a day, add fibre gradually with oats, wholegrains, fruit, vegetables, beans and linseed, eat two kiwifruit or a handful of prunes daily, walk every day, sit on the toilet after breakfast with the knees raised on a stool, do not strain, and use a pharmacy osmotic laxative for a few days if nothing has moved. Avoid regular codeine for pain while constipated.
How can I prevent constipation coming back?
Prevent constipation by keeping fibre around 30 g a day and fluids steady, exercising most days, keeping a regular toilet routine and answering urges promptly, raising the knees on a footstool, limiting constipating medicines or pairing them with a laxative, managing stress, and treating the first signs early rather than letting the bowel load up for a week.
Is constipation different in older people?
Yes. Constipation in older people is driven by medicines, reduced mobility, less thirst, dental problems that limit fibre, and slower bowel transit, and it more often causes overflow diarrhoea, confusion or urinary retention. A regular osmotic laxative is often appropriate long term, and any new change in bowel habit after 60 is investigated for a narrowing rather than assumed to be age.
Is it constipation, irritable bowel syndrome or a blockage?
Irritable bowel syndrome causes constipation alternating with loose stools, bloating and cramps relieved by opening the bowels, over months, without bleeding or weight loss. A bowel blockage causes constipation with severe constant pain, repeated vomiting, a swollen tense belly and no wind at all, and is an emergency. Plain constipation is hard, infrequent stools that respond within days to fluids, fibre and a laxative.
- Constipation: Clinical Knowledge Summary, NICE, National Institute for Health and Care Excellence, revised 2024.
- Suspected cancer: recognition and referral (NG12), NICE, National Institute for Health and Care Excellence, 2015 (updated 2023).
- Irritable bowel syndrome: Clinical Knowledge Summary, NICE, National Institute for Health and Care Excellence, revised 2024.
- Constipation, HSE, Health Service Executive (Ireland), reviewed 2021.
- Resolor (prucalopride): medicine overview, EMA, European Medicines Agency, updated 2024.
- Constipation, NHS, National Health Service (UK), reviewed October 2023.
This page is for information only and is not a substitute for a medical consultation. Guideline links are provided for transparency; treatment decisions are made with your doctor.
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