Uterine infection is characterized by inflammation of the lining of the uterine lining, medically called endometritis. Although generally not life-threatening, this uterine infection must be treated immediately so as not to develop into a more serious and fatal condition. Uterine infections can result in infertility, if not treated immediately. Therefore, women need to know what can cause uterine infections and recognize the symptoms, so that they can identify this condition early on. Causes of Uterine Infection In general, uterine infections are caused by bacteria, including sexually transmitted infections such as gonorrhea and chlamydia, as well as excessive growth of normal bacteria in the vagina (bacterial vaginosis). Uterine infections are more common after childbirth or miscarriage. In addition, there are also several factors that can increase the risk of uterine infections in women, including: Suffer from diabetes or other diseases that interfere with the immune system.