Question: what does it mean if you have a big blood clot on your period?
Answer: When your menstrual flow is heavier, blood clots tend to be bigger because there's a larger amount of blood sitting in the uterus. 2﻿ The clots formed are usually a much brighter red color because blood is filling and moving out of the cavity of your uterus more quickly—so quickly it doesn't have time to darken.