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Dr. Chrysoula I. Liakou MD, PhD
Pre-eclampsia warning signs: get urgent help
Contact your maternity unit or midwife immediately, today, if you are past 20 weeks of pregnancy (or in the weeks after birth) and you have any of:
- a severe headache that does not settle with paracetamol;
- problems with your vision: blurring, flashing lights, spots or floaters;
- pain just below the ribs, especially on the right side;
- sudden swelling of your face, hands or feet;
- vomiting in the second half of pregnancy, or feeling suddenly and generally unwell;
- a blood pressure reading of 160/110 or higher, even if you feel completely well.[1]
If your baby’s movements slow, change or stop, contact your maternity unit straight away. Call 112 if you have a seizure, severe chest pain, severe breathlessness, sudden weakness or confusion, or someone with you cannot be woken. These warning signs still count in the days and weeks after birth: pre-eclampsia can appear for the first time after delivery.[1]
- Treated online: Assessment only: understanding your readings, setting up home monitoring with a validated upper-arm cuff, reviewing your risk and preparing questions; readings of 160/110 or above, any pre-eclampsia warning sign, and every decision on blood pressure medicine belong to the maternity team.
- What it is: readings of 140/90 or above, in about 1 in 10 pregnancies: chronic hypertension before 20 weeks, gestational hypertension after 20 weeks, and pre-eclampsia, affecting about 1 in 20, where high blood pressure comes with protein in the urine or signs of organ strain.
- Numbers: 140/90 to 159/109 is high and needs maternity review and usually treatment; 160/110 or above is severe and needs assessment without delay even if you feel well; blood pressure often peaks 3 to 6 days after birth, when pre-eclampsia can first appear.
- Warning signs: severe headache that painkillers do not ease, flashing lights or blurred vision, pain under the ribs especially on the right, sudden swelling of the face, hands or feet, vomiting after 20 weeks, or reduced baby movements: the maternity unit without delay, never an online appointment.
- Medicines: labetalol, nifedipine and methyldopa are the blood pressure medicines used in pregnancy; ACE inhibitors, angiotensin blockers and most diuretics are stopped before or as soon as pregnancy is known; low-dose aspirin from 12 weeks reduces pre-eclampsia in women at higher risk.
- Emergency: call 112 for a seizure, severe chest pain, severe breathlessness, sudden weakness or confusion, or someone who cannot be woken, and say she is pregnant or recently gave birth; these can be eclampsia or a stroke.
An online consultation is for understanding readings, getting home monitoring right, and preparing questions, never for anything on the warning list above, and never for a reading of 160/110 or higher, which needs urgent assessment. Blood pressure medicines in pregnancy are started, changed and stopped with your maternity team, not over video.
What counts as high blood pressure in pregnancy?
High blood pressure in pregnancy means a reading of 140/90 mmHg or higher. It covers chronic hypertension (present before pregnancy or before 20 weeks), gestational hypertension (new after 20 weeks), and pre-eclampsia, where high blood pressure comes with signs that organs are affected, classically protein in the urine.[1] Definitions are broadly consistent across Europe, and maternity teams lead the care.
How an online consultation helps with high blood pressure in pregnancy
- Understand your numbers: what 140/90 means, why 160/110 is a same-day number, why one reading is never a diagnosis, and what your own pattern suggests, explained without jargon.
- Home monitoring done properly: the right cuff, the right technique and a readable log turn scattered numbers into something your midwife can act on. The doctor sets this up with you in one call.
- Medication questions answered honestly: which blood pressure medicines are used in pregnancy, why some must be switched, and why nothing gets stopped or started without your maternity team. Clarity, not tinkering.
- Escalation without delay: if anything in your story belongs in the same-day category, the doctor names it, tells you exactly who to contact today, and does not let a video call stand in for the assessment you actually need.
What the doctor checks in an online blood pressure consultation during pregnancy
The consultation is structured around one question: is this safe to monitor, or does it need assessment now? The doctor will typically check:
- Your readings and your device: the actual numbers, when and how they were taken, whether your monitor is an upper-arm model and the cuff fits, because technique problems masquerade as hypertension.
- Warning symptoms, one by one: headache, vision changes, pain under the ribs, sudden swelling, vomiting, and how your baby has been moving. These questions come first, every time.[1]
- How many weeks pregnant you are: the same reading means different things at 12 weeks (likely chronic hypertension) and at 34 weeks (possible pre-eclampsia).
- Your risk profile: a first pregnancy, age 40 or over, more than ten years since your last baby, a high BMI, a family or personal history of pre-eclampsia, a multiple pregnancy, or existing diabetes, kidney disease or hypertension. Risk factors decide whether low-dose aspirin from 12 weeks should have been discussed, a maternity-team decision worth raising at your next visit.[1]
- Current medicines: everything you take, particularly if you were on blood pressure tablets before conceiving, because some (notably ACE inhibitors and ARBs) are not used in pregnancy and are switched promptly, in a planned way, by ythe doctors.[2]
- Your monitoring set-up: who is checking your blood pressure and urine, how often, and whether that matches guidance for your situation, so gaps get closed rather than discovered later.
Why does blood pressure matter so much in pregnancy?
Because of pre-eclampsia. It is a condition unique to pregnancy, rooted in the placenta, and it can progress from silent to serious quickly: for the mother, towards seizures (eclampsia), stroke, and liver and clotting problems; for the baby, towards restricted growth and early delivery.[2][4] It affects a minority of pregnancies, most of which end well, and the entire logic of antenatal care (the repeated blood pressure checks, the urine dips) exists to catch it early. The only cure is delivery of the baby and placenta; everything before that is control and timing, decided by specialists weighing mother and baby together. That is why this page keeps repeating the same instruction: warning signs go to the maternity unit today, not to any online service.
Chronic, gestational, pre-eclampsia: three different situations
Chronic hypertension exists before pregnancy and needs its medicines reviewed, ideally before conception. Gestational hypertension appears after 20 weeks without organ signs; it needs closer monitoring because a proportion of women go on to develop pre-eclampsia. Pre-eclampsia itself is high blood pressure plus evidence the body is reacting: protein in the urine, blood test changes, or symptoms from the warning list.[1] The labels matter because they set the monitoring intensity, and because women with any of them benefit from knowing exactly which one applies. If yours has never been named clearly, that is a fair question for one consultation.
After the birth
Blood pressure does not clock off at delivery. It often peaks a few days after birth, gestational hypertension can take weeks to settle, and pre-eclampsia can first appear postpartum.[1] Keep any agreed monitoring going, keep taking prescribed tablets unless told otherwise, and treat the warning list as live for the first weeks after birth. High blood pressure in pregnancy also marks a higher long-term cardiovascular risk, which makes ongoing blood pressure checks in later life genuinely worthwhile.[3][5]
How should I check my blood pressure at home when pregnant?
Use a validated upper-arm monitor with a cuff that fits, sit rested for five minutes with your back supported and arm at heart level, take two readings a minute or two apart, and record both numbers with the date and time. Share the log with your midwife, and agree in advance which numbers mean call today.[2] One honest limit: an online doctor cannot measure your blood pressure through a screen. The value of the consultation is making your own measurements trustworthy and correctly acted on. A single high reading is a prompt to recheck and tell your midwife, not a diagnosis; 160/110 or higher is a same-day number every time.
Can you take blood pressure medicine while pregnant?
Yes. Several blood pressure medicines are used in pregnancy with long experience behind them, commonly labetalol, nifedipine or methyldopa, chosen case by case by maternity teams.[1] Two rules protect you. First, never stop or change a blood pressure tablet on your own: untreated severe hypertension is dangerous in pregnancy. Second, if you conceived while taking an ACE inhibitor or ARB, contact a doctor promptly (within days, not months) to have it switched in a planned way; do not simply abandon treatment.[2] In pregnancy these decisions sit with your obstetric team; an online doctor explains, checks your understanding, and gets the referral moving.
Blood pressure in pregnancy: which care, how fast
Swipe sideways to compare →
| Presentation | Likely first step | Suitable for online care? | When referral or in-person care is needed |
|---|---|---|---|
| Home readings creeping up, below 140/90, no symptoms | Check technique, keep a log, mention at next antenatal visit | Yes, for advice and monitoring set-up | If readings reach 140/90, or any warning symptom appears |
| Confirmed readings 140/90 to 159/109, no warning symptoms | Prompt maternity review for assessment, urine check and monitoring plan | Advice and routing only | Within days, via midwife or maternity unit[1] |
| Reading 160/110 or higher, or any pre-eclampsia warning sign | Same-day maternity assessment | No | Today; 112 for seizure, severe chest pain or breathlessness[1] |
| Chronic hypertension, planning pregnancy or newly pregnant on an ACE inhibitor or ARB | Prompt planned medication review, specialist-led | Explanation and urgent routing | Within days of a positive test; pre-conception review is the ideal[2] |
| High readings in the days or weeks after birth | Prompt review; continue prescribed treatment meanwhile | Advice and routing | Same day if 160/110 or higher, or any warning symptom |
Not sure which row is you? A doctor can tell you in one consultation.
See available times →Treatment options for high blood pressure in pregnancy
What you can do yourself
Keep every antenatal appointment, because the checks are the safety net. Measure at home properly if asked to, and write readings down rather than trusting memory. Stay active in ways that feel right, eat normally rather than crash-restricting salt, and do not take up new supplements on the promise of lowering blood pressure. Know the warning list on this page well enough to recite it, and make sure whoever is around you late in pregnancy knows it too. What self-care cannot do is treat pre-eclampsia; no diet, tea or rest cures it, and believing otherwise costs time that matters.
Prescription treatment
When treatment is needed, maternity teams use blood pressure medicines with an established place in pregnancy, adjusted to keep readings in a safe range for you and your baby, alongside scheduled blood tests, urine checks and growth scans.[1] Low-dose aspirin from 12 weeks is offered to women at higher risk of pre-eclampsia, a decision made with your maternity team rather than something to self-start.[1] The online role is deliberately modest: explaining the plan you have, catching the readings that need escalating, and never adjusting pregnancy blood pressure treatment by video.
What an online doctor can do for high blood pressure, and when you need in-person care
Online help: making sense of home readings and what to do next; setting up correct home monitoring; explaining a diagnosis of chronic or gestational hypertension or pre-eclampsia risk in plain language; medication questions, including what to do if you conceived on tablets that need switching; and preparing for maternity appointments so the right things get asked.
In-person care: anyone with a warning-list symptom or a reading of 160/110 or higher, to same-day maternity assessment, including mid-consultation; confirmed new readings of 140/90 or above, to prompt maternity review; anyone whose baby is moving less, to the maternity unit today; medication starts, stops and changes, to the obstetric team; and pre-conception blood pressure reviews, to a doctor who can plan the switch before pregnancy begins. Raised blood pressure also travels with other symptoms worth knowing about, from palpitations and heart symptoms in pregnancy to ordinary ankle swelling from varicose veins, which is gradual and both-sided, unlike the sudden face and hand swelling of pre-eclampsia. Both sit within the pregnancy conditions the doctors assess online.
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 high blood pressure in pregnancy: a private video call from anywhere in Europe; the consultation always starts with the warning-sign checklist above, worked through together.
- Get your plan and safety-net advice: a prescription or referral follows when right for you, with clear safety-net advice throughout; if your doctor decides you need to be seen in person, you get a full refund.
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Frequently asked questions about high blood pressure in pregnancy
Can an online doctor treat pre-eclampsia?
No, pre-eclampsia cannot be treated online, and you should be wary of anyone who claims otherwise. Pre-eclampsia needs in-person maternity assessment: blood pressure measured properly, urine tested for protein, blood tests for the liver, kidneys and platelets, and monitoring of the baby, with medicines started under supervision and delivery timed by the team. What an online doctor does is recognise the pattern and send you to the maternity unit without delay.
What causes high blood pressure in pregnancy?
Chronic hypertension is the high blood pressure you had before pregnancy or that shows before 20 weeks. Gestational hypertension and pre-eclampsia arise from the placenta: when it implants less well, it releases substances that narrow the mother's blood vessels and damage their lining, raising blood pressure and leaking protein into the urine. A first pregnancy, age over 40, obesity, diabetes, kidney disease, twins, and a previous or family history raise the risk.
What blood pressure is too high in pregnancy?
140/90 or higher counts as high in pregnancy and needs prompt maternity review, usually with treatment to keep readings at or below 135/85. 160/110 or higher is severe: contact the maternity unit without delay even if you feel well, because that level carries a risk of stroke and eclampsia and is treated in person. A single raised reading is repeated after a few minutes of rest; two raised readings count.
How does pre-eclampsia first show itself?
Often there are none you can feel, which is why blood pressure and urine are checked at every antenatal visit and why home monitoring helps. When symptoms come, they are a severe headache that painkillers do not ease, flashing lights, blurring or spots in the vision, pain just under the ribs, sudden swelling of the face, hands or feet, vomiting, feeling suddenly unwell, or reduced baby movements, usually after 20 weeks.
Can I keep taking my blood pressure tablets now I am pregnant?
Do not stop them on your own, and do not panic. Some blood pressure medicines are used routinely in pregnancy, such as labetalol, nifedipine and methyldopa; others, including ACE inhibitors, angiotensin blockers and most diuretics, are switched as soon as pregnancy is known because they can affect the baby. Contact your maternity team or doctor without delay for a medicine review; ideally the switch happens before conception when a pregnancy is planned.
Does high blood pressure in pregnancy go away after birth?
Usually, if it was gestational or pre-eclampsia: readings typically settle over days to weeks, though they often peak briefly three to six days after delivery, which is why checks continue after birth and medicines are tapered rather than stopped. Chronic hypertension continues and is managed as before. Every woman who had high blood pressure in pregnancy is offered a review at 6 to 8 weeks, and her later heart risk is higher.
Can I check my own blood pressure at home during pregnancy, and what numbers matter?
Yes, home monitoring with a validated upper-arm cuff is useful in pregnancy: seated, rested for five minutes, arm supported at heart level, same time each day, two readings a minute apart, written down. The doctor sets your thresholds, but as a rule 140/90 or above means contacting the maternity team without delay, 160/110 or above means contacting them at once, and any warning symptom overrides a normal reading.
What symptoms does high blood pressure cause in pregnancy?
Usually none, which is the danger. Mild to moderate high blood pressure is silent and found only by measurement. When symptoms do appear they belong to pre-eclampsia or severe hypertension: a severe headache, visual disturbance, pain under the ribs, sudden swelling, vomiting, breathlessness, confusion or a seizure. That is why antenatal checks, home readings and knowing the warning list matter more than how you feel.
How long does high blood pressure last in pregnancy?
Gestational hypertension and pre-eclampsia continue until the birth, since the placenta drives them, and resolve over days to weeks afterwards, with a peak around day 3 to 6; treatment is usually tapered off within 2 to 6 weeks of delivery. Chronic hypertension continues after pregnancy. Blood pressure still raised at the 6 to 8 week review is reassessed as chronic hypertension, and pre-eclampsia is likelier again in future pregnancies.
What can I do myself about high blood pressure in pregnancy?
Attend every antenatal check, monitor your blood pressure at home as advised, take prescribed medicines exactly as directed, keep salt intake modest, keep active with walking or swimming, rest on your left side, avoid smoking and alcohol, keep weight gain within the advised range, know the warning signs and your maternity unit's number, and report reduced baby movements. Bed rest and fluid restriction are not recommended, and no supplement replaces monitoring and medication.
How can pre-eclampsia and high blood pressure in pregnancy be prevented?
Women at higher risk are advised to take low-dose aspirin daily from 12 weeks until birth, which reduces pre-eclampsia substantially, and calcium supplements where dietary intake is low; do not start either without advice. Controlling existing blood pressure, diabetes and weight before conception, switching unsuitable medicines early, not smoking, staying active and attending every check also lower the risk; most pre-eclampsia cannot be prevented entirely, only caught early.
What happens to blood pressure after the birth?
Blood pressure often rises for a few days after delivery, peaking around day 3 to 6, and pre-eclampsia can appear for the first time in the week after birth, so readings are checked in the days after delivery and medicines continued and then tapered over weeks. A severe headache, visual disturbance, pain under the ribs, swelling, breathlessness or a seizure after birth needs the maternity unit or 112.
Is it high blood pressure, white-coat readings or pre-eclampsia?
White-coat hypertension is readings raised in clinic but normal at home, confirmed by home monitoring and watched rather than treated. Chronic hypertension is raised before 20 weeks; gestational hypertension is raised after 20 weeks with no protein or organ involvement; pre-eclampsia adds protein in the urine, abnormal blood tests or symptoms. The maternity team tells them apart with urine and blood tests, and treats pre-eclampsia as the condition that can change by the hour.
- Hypertension in pregnancy: diagnosis and management (NG133), NICE, National Institute for Health and Care Excellence, 2019 (updated 2023).
- Hypertension in pregnancy, NICE Clinical Knowledge Summaries, revised 2024.
- 2018 ESC Guidelines for the management of cardiovascular diseases during pregnancy, ESC, European Society of Cardiology, 2018.
- Maternal mortality fact sheet, WHO, World Health Organization, 2024.
- Hypertension fact sheet, WHO, World Health Organization, 2025.
- High blood pressure (hypertension) and pregnancy, NHS, National Health Service (UK), reviewed November 2024.
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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