ZocdocAnswersCan clotting disorders cause very heavy periods?

Question

Can clotting disorders cause very heavy periods?

Hello. I'm 25 and have always had very havey periods. Is this because of a clotting disorder?

Answer

There are several potential causes of heavy periods. Certainly one of those causes is a clotting disorder, but this is not the most common cause of heavy periods. Probably the most common cause is simply individual genetics. Some women simply have heavier periods, and this can simply be their normal variant. Especially if it is not causing anemia then it is probably not a problem that needs to be worried about. Other causes of heavy periods include structural or anatomical problems in the uterus, such as uterine fibroids, endometriosis, and hormonal imbalances (such as polycystic ovarian syndrome). If you are having significant symptoms from your periods, or if you are becoming anemic from the heavy bleeding, then these are the things that your primary care doctor or your OB GYN doctor will probably investigate first. In a smaller subset of patients, usually those who do not have one of those previous problems, the heavy bleeding can be traced to a clotting disorder. The most common clotting disorder that causes this is von Willebrands disease, which is a problem of platelet function. Most people with von Willebrand's disease will also have other symptoms, such as easy bruising, gum bleeding, and the like.

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