Why do menstruations go in clots?

Irina Kosheleva
Irina Kosheleva
February 28, 2013

Health is a hot topic for everyone, regardless of age. But it just so happened that the conditions of modern life, the ecological situation and the consequences of environmental disasters made the topic of health a priority. This is especially true of the health of women who are the continuers of the human race. When something goes wrong, a lot of questions arise: why do menstruations go in clots? Is this normal? Should I worry and run to the doctor? Consider these and other issues in more detail.

Abnormal structure of the uterus

One of the causes of heavy periods with clots may be a congenital anomaly in the structure of the uterus. If there are any deviations in the structure - partitions that should not exist, an irregular shape, and so on, then blood stagnation occurs. The blood is released, it accumulates, but it does not come out evenly, but in clots, as it accumulates inside. The abundance of menstruation in this case may be due to a failure of the hormonal background, which is often the case with an abnormal structure of the uterus.

Deviations can be different - one-horned uterus, septum, doubling of the vagina and uterus, split body or cervix, and at the same time the common vagina. A rudimentary horn of the uterus may form.

Only an experienced doctor can determine the abnormal structure of the uterus using special procedures - hysteroscopy or hysterography. Treatment is also prescribed by the doctor, as a rule, operative.

Hormonal disbalance

Another reason that menstruation comes with clots - hormonal failure. The reasons for hormonal failure can be many - stress, tumors of the brain that are responsible for hormones (hypothalamus and pituitary), diseases of the urogenital system, sexually transmitted diseases, diseases of the thyroid, adrenal glands, etc.

Also contraceptives - pills, spirals affect hormones.

To accurately determine what caused the hormonal failure, you need to consult a doctor and do a full examination.


When areas of the uterus mucosa grow in other organs and tissues, this is called endometriosis. This may happen due to the fact that along with the blood, the mucous cells that have got into the body during the month are also spread.

Menstruation with endometriosis is extremely painful, cyclical failures and irregular uterine bleeding may also occur. You must be examined and monitored by a doctor.

As can be seen from the above cases, abundant menstruation with clots is a deviation and requires medical diagnosis.