A number of problems lead to abnormal vaginal bleeding. These include a number of medical conditions, medications, injury and lifestyle factors.
Medical conditions related to vaginal bleeding include:
- Bleeding disorders
- Thyroid and pituitary problems
- Uterine infection, fibroids and polyps
- Thickening of the lining of the uterus (endometrial hyperplasia)
- Polycystic ovary syndrome
- Cancer of the uterus lining
- Complications of pregnancy such as ectopic pregnancy or miscarriage
Changes in birth control pills or hormone medications and use of steroids or blood thinners also are related to abnormal vaginal bleeding.
Changes in diet or exercise routine, recent weight gain or loss and stress also may contribute to abnormal vaginal bleeding.