Hi
A brown discharge is usually a blood discharge. Such bleeding can be caused by all kinds of things - most commonly infections and erosions There are many other possibilities and the only way to find out what is causing it I suspect this is not going to go away by itself so go and get it attended to. Most of the possible causes are extremely easily treated.
A proper Physician checkup is necessary .So take appointment from Gynaecologist.
Thanks
Take Care.
__________________
Click the ACCEPT button and leave a POSITIVE FEEDBACK if my reply is helpful to you. A BONUS would be encouraging.

