Can pregnancy make your ulcerative colitis flare?

Ulcerative colitis (UC) is a chronic inflammatory bowel disease that affects the colon and rectum. Pregnancy can cause changes in the immune system and hormone levels, which may lead to a flare-up of UC symptoms. Some studies have found that up to 30% of women with UC experience a flare-up during pregnancy.

Here are some reasons why pregnancy may increase the risk of a UC flare-up:

Changes in hormone levels: During pregnancy, the levels of certain hormones, such as estrogen and progesterone, increase. These hormones can affect the immune system and the way the colon and rectum function, which may lead to a flare-up of UC symptoms.

Increased stress: Pregnancy can be a stressful time, which can also trigger a UC flare-up. Stress can affect the immune system and make it more difficult for the body to control inflammation.

Nutritional changes: Some women experience changes in their diet during pregnancy, which can also contribute to a UC flare-up. For example, eating more carbohydrates and less fiber can worsen UC symptoms.

Increased blood volume: During pregnancy, the blood volume increases, which can put a strain on the colon and rectum. This can also lead to a flare-up of UC symptoms.

If you have UC and are planning to become pregnant, it is important to talk to your doctor. They can help you develop a plan to manage your UC during pregnancy and reduce the risk of a flare-up.