Many women wonder at the beginning of the menstrual cycle: "Why does blood clot during menstruation?" Some consider this phenomenon normal, while others - a sign of a dangerous disease. In fact, during menstruation, clots come out due to an unsuccessful pregnancy. Why is this happening? Throughout the cycle, the walls of the uterus thicken in anticipation of a future pregnancy. When the fertilization of the egg does not occur, the layer of the formed endometrium is rejected, from which large blood clots form during menstruation.
For one menstruation (4-5 days), a woman gets rid of about a quarter of a liter of blood, which has a bright scarlet color, a low level of coagulability and smells specifically. In this case, the body does not feel anxiety, since the lost volume of vital fluid is compensated independently in a natural way. Blood during this period can change color and consistency. At the same time, any shade of fluid secreted from the vagina is considered to be the norm - from scarlet to brown.
Often, women during menstruation find blood clots in their discharge that look like pieces of the liver that are 0.5-4 millimeters in size. This is because enzymes that inhibit blood coagulation (anticoagulants) cannot handle a large amount of this fluid. Not having time to go out
in full, they form blood clots. That is why, during menstruation, blood comes out in clots. Such a process should be monitored with the help of a doctor to prevent excessive loss of precious fluid.
It is important to find out why, during menstruation, blood comes out in clots if, in the period preceding this, attempts were made to become pregnant. Blood clots observed in the discharge, in this case, can be a signal of a miscarriage. At the same time, their color becomes gray or acquires a yellowish tint due to the release of a fetal rejected egg. Such a process is irreversible.
It is also quite clear why, during menstruation, blood comes out in clots in women with an established spiral inside the uterus. In this case, blood clots are a component of a fertilized egg, washed off by menstrual
secretions.

In case of pain associated with the release of blood clots during menstruation, an urgent visit to the doctor is necessary. Such a symptom may indicate the occurrence of endometriosis. This disease in women develops for various reasons - due to the frequent use of alcoholic beverages, smoking, abortion, hormonal failure, an inflammatory process in the reproductive system. Symptoms of endometriosis are blood clots, not only during menstruation, but also after it. Only a doctor can diagnose the disease on the basis of smears, tests of urine, blood and ultrasound. The main thing is to seek medical help in a timely manner, and then the gynecologist will be able to prescribe the optimal treatment and procedures that contribute to a speedy recovery. Among other things, a blood coagulation test may be necessary for the diagnosis of endometriosis . Only timely treatment can guarantee complete healing.