What is Gestational Diabetes?

Gestational diabetes: helping you and your unborn baby stay healthy

Gestational diabetes is a type of diabetes that occurs in pregnancy, usually during the second or third trimester. It is usually diagnosed by a blood test at 24-28 weeks into pregnancy. Women with gestational diabetes don’t have diabetes before their pregnancy, and after giving birth it usually, but not always, goes away. Women who have had the condition in previous pregnancies may be tested earlier. With good management of gestational diabetes, you can increase your chances of having a healthy pregnancy and baby.

What causes gestational diabetes?

The hormones produced during pregnancy increase the risk of insulin resistance and can make it difficult for your body to use insulin properly. Pregnancy places a heavy demand on the body, and some women are less able to produce enough insulin to overcome this resistance. This makes it difficult to use glucose properly for energy, so the glucose remains in the blood and the levels rise, leading to gestational diabetes.

Management of Gestational diabetes will involve regular appointments for monitoring before and after the baby is born. This will involve all of the diabetes team alongside:

  • Regular blood glucose monitoring
  • Dietary and exercise advice during pregnancy to help control blood glucose
  • Medication if blood glucose is not under control (this may be tablets or insulin injections)

London Diabetes Centre Gestational Diabetes Service

Appointments are available daily with a Dietitian (60 minutes). This service costs £150 and includes follow up emails after your consultation.

You can find further information regarding gestational diabetes on the following link:




Pregnancy and Type 1



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