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1. Delayed Periods. â A brown vaginal discharge instead of a period usually occurs due to late periods. â Sometimes if the lining is not eliminated, the residual can remain within the uterus for almost a month. â In this condition, a womanâs body expels an old uterine lining.
Old Blood. If you notice brown spotting a week or two after your monthly period, it would often mean that some amount of tissue and menstrual blood were not properly expelled out of your body. Since they could still be inside the uterus, they need to be discharged in a form of spotting even after your period has ended.