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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.
Brown vaginal discharge can result from irregular menstrual cycles, although it can be an ominous sign of cancer of the cervix or endometrium, notes WebMD. However, most instances of brown vaginal discharge are not caused by cancer. Continue Reading.