What should you know about heavy brown discharge?

Brown colour can appear when blood takes longer to leave the body and becomes darker. The amount, timing, and other symptoms matter more than colour alone. Note whether the discharge occurs around a period, after sex, or at another point in the cycle.

A heavier flow may occur with changes in the uterine lining, hormonal shifts, or conditions such as uterine fibroids, adenomyosis, endometrial polyps, or endometrial hyperplasia. Perimenopause and polycystic ovary syndrome can also change bleeding patterns. Ongoing blood loss may contribute to iron deficiency anaemia, which can cause tiredness, weakness, breathlessness, or dizziness.

Discharge with pelvic pain, fever, a strong unpleasant smell, bleeding after sex, or bleeding after menopause should be assessed rather than monitored indefinitely. These features do not identify one cause by themselves.

Record when the discharge started, how often you change menstrual products, whether clots are present, and any pain, odour, fever, or dizziness. Include the first day of your last period and any recent contraception or medication changes.

Arrange a clinician review if the discharge keeps returning, is much heavier than your usual pattern, or is affecting daily activities. A clinician may ask about your cycle and pregnancy possibility, examine you, and choose tests based on your symptoms.

Seek urgent medical help for very heavy bleeding with faintness, marked weakness, shortness of breath, severe pelvic pain, or a racing heartbeat. Get prompt assessment for bleeding during pregnancy, after menopause, or with fever and feeling acutely unwell.

Could the timing and amount fit a menstrual or hormonal change? Do my symptoms suggest a problem with the uterus or cervix? Should I have a pregnancy test, blood test for anaemia, pelvic examination, or imaging? What changes should prompt urgent review?