Gestational diabetes – a pregnant woman is sitting on the couch and setting up her glucose test during pregnancy

Gestational diabetes – advice and what to do

Gestational diabetes affects many mothers-to-be. Find out more about the symptoms and risks and what happens to blood sugar levels after the birth.

Nicole Stadelmann
5 Min. Reading Time
  •    Short and simple
    Gestational (pregnancy-related) diabetes is common.
    This is when the pregnant woman has too much sugar in her blood.
    There is a test for this condition.
    Eating a healthy diet and getting plenty of exercise help.
    Blood sugar levels usually return to normal after the birth.
Gestational diabetes is one of the most common complications of pregnancy, affecting 10% to 15% of pregnant women. Without treatment, the risk of additional complications increases for the mother and the unborn child. This can have both short-term and long-term consequences. Gestational or pregnancy-related diabetes manifests in the form of elevated blood sugar levels during pregnancy. 

What happens in gestational diabetes?

The body’s hormone balance changes during pregnancy, and it needs more insulin. Produced by the pancreas, this hormone is responsible for regulating blood sugar levels. If the pancreas is not capable of making sufficient insulin, blood sugar levels in the body rise. The sugar travels via the placenta to the baby, which then begins to produce more insulin itself. This can lead to rapid growth and increased fat accumulation in the child. The consequence of this can be a large and heavy baby.

Risk factors for gestational diabetes

  • Mother’s age over 35
  • Previous operation to reduce stomach size (bariatric surgery)
  • Obesity (BMI > 30) before the pregnancy
  • Diabetes in the family (parents or siblings)
  • History of gestational diabetes
  • Previous delivery of a baby with a birth weight of over 4,000 grams
  • Polycystic ovary syndrome (PCOS, a hormonal disorder in women)

How to recognise gestational diabetes

Gestational diabetes – a pregnant woman is sitting on the couch and looking at her blood sugar monitoring device for her glucose test during pregnancy

In general, gestational diabetes does not cause any symptoms. Typical diabetes symptoms such as increased thirst and frequent urination are absent. Often, non-specific symptoms like more frequent urinary tract infections, elevated blood pressure and increased quantities of amniotic fluid are the first indications of gestational diabetes.

Diagnosis via glucose tolerance test

Experts recommend testing women for gestational diabetes between the 24th and 28th weeks of pregnancy. A glucose test during pregnancy is conducted earlier if certain risk factors, such as obesity, are present. This test generally takes place in two stages: 

  1. First, your fasting blood glucose level (i.e. after not eating anything for a certain time) is measured. If the result is within a certain range, a glucose tolerance test is carried out to make a definitive diagnosis

  2. For the glucose tolerance test, the mother-to-be drinks a sugary drink and her blood glucose levels are measured multiple times over a certain period. If the blood glucose levels are too high, a diagnosis of gestational diabetes is made..

Consequences for mother and child

Gestational diabetes is a health risk for both the mother and the unborn child. This diagnosis turns a normal pregnancy into a high-risk one. If optimal blood sugar levels during pregnancy are not achieved, the risk of the following increases: 

  • Pre-term birth
  • High birth weight in the child, which can make the birth more difficult
  • Type 2 diabetes in the mother
  • High blood pressure during the pregnancy

How is gestational diabetes treated?

If you have been diagnosed with gestational diabetes, your gynaecologist will discuss the treatment with you. Usually, dietary changes and regular exercise are sufficient to normalise the high blood sugar levels. Specialist advice on diabetes and nutrition can help you with this. If during pregnancy, your blood sugar levels do not return to normal despite dietary changes and increased exercise, you will have to inject insulin.

 Tips on nutrition during gestational diabetes 

  • Eat at least three portions of seasonal vegetables every day (one portion equals a handful).
  • Give preference to wholegrain products.
  • Only consume sweets in small quantities.
  • Eat four to five smaller meals spread over the course of the day.
  • Drink water or unsweetened tea instead of drinks containing sugar.

Where to find support from experts

Hospitals also offer advice on nutrition and diabetes.

After the birth: what happens to blood sugar levels?

In most cases, gestational diabetes resolves after the birth. To make sure this has happened, blood sugar levels are measured again six weeks after the birth. Regular monitoring of blood glucose levels is advisable as up to 50% of affected women are at higher risk of developing type 2 diabetes later in life. The long-term adoption of a balanced diet (available in German, French and Italian) and regular exercise also reduce the risk of type 2 diabetes after the pregnancy.

Gestational diabetes – what does the health insurance pay?

The glucose tolerance test is carried out as part of a check-up by your gynaecologist. The costs thus fall under special maternity benefits and are covered by the mandatory health care insurance (OKP, basic insurance).
A pregnant woman sits on the sofa with her laptop and paperwork

 Which benefits are covered by your health insurance for maternity?

Go to our overview of benefits for pregnancy, birth and the postnatal period. There you will find detailed information on the benefits provided by your basic health insurance and CONCORDIA’s supplementary insurance policies. You can also find out more about the cost contribution.