How to distinguish menstruation and lochia in the month

Lochia is postpartum uterine decidua shedding, vaginal outflow of blood and necrotic decidua tissue and other substances, generally can last 4-6 weeks, if there is infection, placenta membrane residual phenomenon, will prolong the lochia time, and accompanied by foul smell. And menstruation generally lasts only two to eight days, so you can distinguish menstruation and lochia according to the time of vaginal bleeding.