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Management of blood pressure during pregnancy with diabetes

If you have diabetes and are pregnant, you should follow your blood pressure at home with self-measurements. A person with diabetes has a higher risk of blood pressure symptoms during pregnancy (pre-eclampsia).

During pregnancy, target value for blood pressure is below 140/90 mmHg. Of the non-medicinal treatments of blood pressure, the most important ones are avoidance of salt (sodium), salty food and liquorice as well as doing gentle exercise and sufficient rest.

Having diabetes includes a higher risk for high blood pressure as well as pre-eclampsia, a condition that causes high blood pressure symptoms during pregnancy. Previously, pre-eclampsia was called pregnancy toxaemia. It refers to sudden increase of the pregnancy related swelling, higher blood pressure and higher amount of protein in urine. Pre-eclampsia requires rest and medication at a hospital ward. Usually, it becomes necessary to artificially start the labour early. The risk of pre-eclampsia is particularly high in those women with diabetes who have impairments in their kidney functions already before pregnancy.

Due to the higher risk of pre-eclampsia in women with diabetes, a pregnant person with diabetes must start an aspirin tablet treatment of 100 mg per day from week 12 of pregnancy. The medication is continued until week 36.

Important

If your blood pressure is repeatedly higher than 150/100 mmHg in self-measurements, you should contact the clinic in charge of following your pregnancy for an assessment of the situation and either planning or enhancing your medication.

Updated 28.2.2025