Why discharge turns brown
Brown discharge is almost always old blood. Blood that takes a while to leave the body oxidises and turns from red to brown, so brown discharge usually means a small amount of blood mixed with normal discharge. On its own, it's often nothing to worry about.
The key is when it happens and what comes with it.
Common causes
Brown discharge often appears at the start or end of a period (old blood clearing), around ovulation (mid-cycle spotting), or when starting or changing hormonal contraception. In early pregnancy, light brown spotting can be implantation bleeding.
In these situations it's usually light, brief and painless, and settles on its own.
When to see a GP
Get it checked if brown discharge is persistent or recurrent, has a strong or foul smell, comes with itching, pelvic pain or fever (which can suggest infection), happens after sex, or if you could be pregnant and have bleeding. And importantly, any bleeding after menopause needs prompt assessment.
A GP can take a history, arrange swabs or a scan if needed, and reassure or treat you. A telehealth consult is a private, convenient way to get an answer.
Related condition
Vaginal & vulval health →References & sources
- 1.Vaginal thrush — healthdirect
- 2.Vaginal thrush — Better Health Channel
- 3.Bacterial vaginosis — Better Health Channel
- 4.Vulva and vagina — Jean Hailes for Women's Health
This content is general information and not a substitute for individual medical advice. Please consult a GP for your personal situation.
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