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Blood clots during your period: what do they mean?

Normally, period fluid should be liquidy and burgundy or dark red in color, but many women observe menstruation clots of blood after waking up or sitting still for a long time. This happens when blood starts coagulating. Find out what menstrual clots might be a sign of in this article.

Menstrual clots: what should you pay attention to?

Menstrual discharge consists of old parts of endometrial tissue, blood from small vessels that get damaged when the uterus sheds its lining, and mucus from the cervical glands.

Blood contains anticoagulants, which are enzymes that keep it from clotting. Thanks to these enzymes, the discharge is liquid and comes out quickly.

With a heavy period, anticoagulants fail to do their job; blood coagulates and clots appear.

Normally, in one period, the number of clots should not exceed 10, their size — 0.4 in (1 cm), and the total amount of discharge is not more than 2.7–3.4 fl oz (80–100 ml).

If clots appear every month, this may indicate some gynecological disorders or blood diseases. In this case, you should remember their color, size, quantity, and consistency, and share this information with your doctor.

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Are period blood clots normal?

When preparing for pregnancy, for instance, you should monitor your menstrual flow very closely, in particular, to see if there are clots.

Clots can be the norm during the first days of heavy bleeding (usually days 1–2 of menstruation, but not every cycle). Otherwise, they may indicate certain gynecological disorders:

  • polyp or endometrial hyperplasia
  • uterine myoma
  • adenomyosis (abnormal growth and shedding of the endometrium)

Clotting might also be associated with oncology and blood coagulability disorders.

All these diseases can affect the ability to conceive. In this case, clots signal a problem in the body.

Therefore, with regular clots, consult a doctor on day 5–7 of the cycle.


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