Complications associated with endometrial ablation and resection are rare, but they do occur. The most common risks include:

• Perforation of the uterus.
  
  
• Fluid overload. This is a result of the fluid that is pumped into the uterus to keep it open. Because this fluid is kept under pressure during the procedure, it may escape into the blood vessels of the uterus on rare occasions. This can alter the balance of electrolytes in the bloodstream, a potentially life-threatening condition.
  
  
• Blood loss.
  
  
• Burning of internal structures.

In rare cases, patients who have endometrial ablation may develop endometrial carcinoma in functional endometrial tissue that was missed or buried during the procedure. The risk is small in women who have not had a history of endometrial hyperplasia or carcinoma.