Mayo Clinic Health Manager
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By Mayo Clinic staffPossible causes of abnormal vaginal bleeding:
- Cervical cancer
- Cervicitis
- Chlamydia
- Ectopic pregnancy
- Endometrial cancer
- Endometrial hyperplasia
- Endometritis
- Fluctuating hormone levels
- Gonorrhea
- Hypothyroidism (underactive thyroid)
- Menorrhagia (heavy menstrual bleeding)
- Miscarriage
- Ovarian cancer
- Ovarian cysts
- Pelvic inflammatory disease (PID)
- Perimenopause
- Polycystic ovary syndrome
- Sexual intercourse
- Stopping birth control pills or hormone replacement therapy (withdrawal bleeding)
- Tamoxifen side effect
- Uterine fibroids
- Uterine polyps
- Uterine sarcoma
- Vaginal cancer
- Vaginal or cervical trauma
- Vaginitis
- Von Willebrand disease
Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis.