Understanding pre-eclampsia

The condition can affect the kidneys, liver, brain, blood clotting system and placenta. Some people feel well, so blood pressure checks and urine tests at antenatal appointments matter. Possible warning symptoms include a severe headache, visual changes, pain beneath the ribs, sudden swelling of the face or hands, vomiting later in pregnancy, or feeling very unwell.

Pre-eclampsia can affect the baby's growth and the placenta's function. Your team may check blood pressure, urine protein, blood tests, the baby's growth and blood flow. The pattern can change quickly, so monitoring is tailored to your findings and stage of pregnancy.

Keep scheduled appointments and take prescribed blood-pressure medicine exactly as directed. Your maternity team may recommend home readings, extra scans, blood tests or admission for closer observation. Treatment aims to reduce danger while allowing pregnancy to continue when that remains safe.

Birth is the only definitive way to end pre-eclampsia, but timing and method depend on your health, the baby's condition and how far pregnancy has progressed. Labour may be induced, or a caesarean section may be advised. The condition can need monitoring after birth as well.

Contact your maternity unit urgently for a severe headache that does not settle, flashing lights or blurred vision, severe pain under the ribs, sudden swelling, shortness of breath, chest pain, confusion, vaginal bleeding, or reduced fetal movements. Do not wait for the next appointment if these symptoms appear.

Ask which findings led to the diagnosis, how often your blood pressure and blood tests need checking, how your baby will be monitored, which symptoms require immediate attendance, and what birth plan is safest if the condition worsens.