Is menstrual coagulation dangerous?

Most menstrual clotting is not dangerous or serious. However, it is important to note any changes in a menstrual period, such as heavy bleeding and lower back pain, as well as clotting. These could be signs of a condition that requires medical treatment.

Menstrual clotting that occurs during pregnancy can be dangerous, as it could indicate that the baby is growing outside and not inside the uterus. Clotting and heavy blood flow can also indicate a miscarriage or other pregnancy problems. If a pregnant woman experiences heavy bleeding and/or menstrual clotting, she should seek medical help immediately. Even if a woman experiencing these symptoms does not believe she is pregnant, a pregnancy test is usually done when a doctor looks for the cause of the clotting.

Another common cause of heavy menstrual bleeding and clotting is uterine fibroids. Uterine fibroids are noncancerous smooth muscle tumors that grow in various parts of the uterus. Symptoms of uterine fibroids include back pain along with heavy bleeding and menstrual clotting. Doctors can perform tests to check for the presence of fibroids.

Menstrual clotting can be a normal part of menstruation. Clots in menstrual flow may simply mean that blood is passing through the body at a rapid rate. Some medications can cause changes in menstrual flow that include clotting. This cause can be difficult to prove, but it may be easier if a woman recently started experiencing menstrual clots shortly after starting a new medication.

Significant changes in weight, either loss or gain, can also cause menstrual clotting. Clotting during menstruation can also be a normal part of perimenopause, or the time before the actual menopause occurs. Menopause is the end of a woman's menstrual periods, but in many cases, changes in blood flow can occur years before it occurs. Hormonal changes also cause menstrual clotting. If clotting as part of a menstrual period is new to a woman, or if the clots are larger than the size of quarters, she should see a doctor as soon as possible.

A woman who experiences any change in her menstrual period that lasts for more than a month should report the change to her doctor. In most cases, menstrual clotting isn't dangerous, but when doctors know it's happening, they can run tests to find the cause. Other health issues caused by clotting or heavy periods need to be addressed. For example, if a woman is losing a lot of blood through her menstrual flow, a doctor may prescribe iron supplements.

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