Here’s what’s in your period flow: Blood, endometrial lining, cervical mucus, and vaginal secretions - as visualized here in a menstrual cup cut into pieces. You might refer to your period discharge as ‘blood’, but this is only part of the story. Besides blood, you’ll find other body cells in your period. The mix of these cells changes over your period, which is a contributing factor to why your period blood color varies over your period. #Period #PeriodBlood #PeriodHacks #MenstrualCycle