What Are Period Clots? Dear BeingGirl Experts, I think something might be wrong with me. I bleed a lot when I'm having my period. I have to use super tampons every day of my period and my period lasts a lot longer than my friends say theirs do. Also, it doesn't matter if I use a tampon or a pad, I still find "chunks" of blood mixed in with the regular blood. Please tell me if I should be worried about this, because right now I'm very worried if this is normal. Rose --- Dear Rose, Your menstrual blood is not pure liquid. The “chunks” you see are clots. Clots are most likely larger pieces of your uterine lining, the endometrium, which is breaking down and leaving your body in the form of your period. While this sounds like normal menstrual flow, you should let mom and your health care provider know this is happening. Every girl’s pattern is unique. Try not to compare yourself to your friends. Some girls menstruate for only 3 days, and some for as long as 7 or 8. The average is about 4–5 days. If your period lasts longer than 7 days and/or you are soaking through at least a pad an hour for several hours in a row or completely saturate a tampon in an hour or if you period lasts longer than 8 days then you really need to let your health care professional know about this. Hope this helps, Your BeingGirl Experts Wondering what are period clots? Get answers from the experts at BeingGirl.com.