The short explanation
Brown discharge just before a period is usually old blood. A small amount of blood that takes longer to leave the body turns brown as it mixes with air and discharge. Many women notice brown spotting a day or two before the period starts or after it ends, and it is often normal. Brown discharge is worth checking if it happens often between periods, after sex, lasts many days, comes with a bad smell, itching or pain, or if there is any chance you are pregnant. Hormonal contraception can also cause brown spotting, especially in the first few months.
What depends on your situation
The parts of this that change from woman to woman. Uncertainty is stated, not hidden.
- Stress, weight change and starting or stopping contraception can change your cycle and cause spotting.
- If you are sexually active, it is worth taking a pregnancy test if a period is late and you have brown spotting.
- Spotting after sex should be checked.
What this answer cannot determine
The boundary of online education. These need a clinician who can see you.
- This cannot tell you the cause of your brown discharge. A clinician can examine you and, if needed, order tests.
Questions for your clinician
Take these with you. You can add any of them to an appointment card.
- Is brown spotting before my period normal for me?
- Could my contraception be causing it?
- Do I need a pregnancy test or any other test?
When to seek help
Clinician-approved guidance for this topic. When in doubt, being seen is never the wrong choice.
Get help the same day
- Get care the same day if brown discharge comes with severe one-sided pelvic pain, or you are pregnant and bleeding.
Book an appointment soon
- See a clinician within a few days if brown discharge happens after sex, lasts many days, or smells bad.
Raise it at a routine appointment
- Book a routine visit if spotting between periods keeps happening. You can ask for a woman doctor, and you can bring a friend or relative into the room with you if that helps.
Sources
The evidence this explanation is built on.
- Vaginal bleeding between periods MedlinePlus (NIH)
- Vaginal discharge NHS
Who wrote and reviewed this
Every AskHer answer names its author. A clinically reviewed answer also names the clinician who signed it off — if no clinician is named below, it has not been clinically reviewed.
- Author
- AskHer Editorial (AI-assisted draft) AskHer's editorial team — not an individual clinician Works in English, தமிழ், हिन्दी
- Clinical reviewer
- Nobody yet No clinician has signed this answer off, and no person on the editorial team has read it yet. That is what the “Written with AI assistance” label means. It is queued for an editor to read, and then for a clinician who works in this area. The sources it was drafted against are listed above.
- Review status
- Written with AI assistance — not yet reviewed by a person
- Last reviewed
- Not yet reviewed by a person
- Version
- 1
Correction history
Substantive changes are listed, not quietly edited away.
No corrections have been made since this answer was first published.
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