Fibroids & Pregnancy

pregtumFibroids may also rarely cause problems during pregnancy and labour, such as pain when they undergo what is called “red degeneration”, early labour, failure of the baby’s engage if the fibroids are in the wrong place, and bleeding after delivery as the fibroids may interfere with the shrinking of the uterus.

Since 50% of women with fibroids have no symptoms, it stands to reason that fibroids often do not interfere with pregnancy. They may enlarge during pregnancy and cause some discomfort. Some fibroids in certain areas, however, can make conception difficult or lead to miscarriage. Fibroids may press against, or block the entrance to, the fallopian tubes, thus preventing the egg from reaching the uterus. Submucous fibroids that grow inwards into the womb are thought to cause recurrent miscarriage.

A fibroid can also interfere with labour and birth if it blocks the passage to the birth canal. This may necessitate delivery by caesarean section. Fibroids may increase the risk of bleeding heavily after birth, and can increase the time it takes for your womb to return to its normal size.

Just as fibroids can affect pregnancy, pregnancy can affect fibroids. It is thought that fibroids grow during pregnancy because of higher levels of oestrogen, but there is little evidence to support this. Another effect of pregnancy on fibroids is something called ‘red degeneration.’ This is when a fibroid’s blood supply is cut off, causing it to turn red and die. It can also happen outside of pregnancy but it usually occurs in the middle weeks of a pregnancy. Red degeneration can cause intense abdominal pains and contractions of the womb, which could lead to early labour or miscarriage. The pain and contractions usually stop on their own but often hospitalization and pain killers are required.

Book An Appointment At Our Fibroids Clinic Call: 020 8947 9877

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