Myomectomy has a low complication rate. Still, the procedure poses a unique set of challenges. Risks of myomectomy include:
⦁ Excessive blood loss. Many women with uterine leiomyomas already have low blood counts (anemia) due to heavy menstrual bleeding, so they’re at a higher risk of problems due to blood loss. Your doctor may suggest ways to build up your blood count before surgery.
During myomectomy, surgeons take extra steps to avoid excessive bleeding. These may include blocking flow from the uterine arteries by using tourniquets and clamps and injecting medications around fibroids to cause blood vessels to clamp down. However, most steps don’t reduce the risk of needing a transfusion.
In general, studies suggest that there is less blood loss with hysterectomy than myomectomy for similarly sized uteruses.
⦁ Scar tissue. Incisions into the uterus to remove fibroids can lead to adhesions — bands of scar tissue that may develop after surgery. Laparoscopic myomectomy may result in fewer adhesions than abdominal myomectomy (laparotomy).
⦁ Pregnancy or childbirth complications. A myomectomy can increase certain risks during delivery if you become pregnant. If your surgeon had to make a deep incision in your uterine wall, the doctor who manages your subsequent pregnancy may recommend cesarean delivery (C-section) to avoid rupture of the uterus during labor, a very rare complication of pregnancy. Fibroids themselves are also associated with pregnancy complications.
⦁ Rare chance of hysterectomy. Rarely, the surgeon must remove the uterus if bleeding is uncontrollable or other abnormalities are found in addition to fibroids.
⦁ Rare chance of spreading a cancerous tumor. Rarely, a cancerous tumor can be mistaken for a fibroid. Taking out the tumor, especially if it’s broken into little pieces (morcellation) to remove through a small incision, can lead to spread of the cancer. The risk of this happening increases after menopause and as women age.
In 2014, the Food and Drug Administration (FDA) cautioned against using a laparoscopic power morcellator for most women undergoing myomectomy. The American College of Obstetricians and Gynecologists (ACOG) recommends you talk to your surgeon about the risks and benefits of morcellation.