Blood Clots During Your Period

Blood clots in your period flow can be very normal and simply a natural part of your menstruation.

Many women pass period clots at some point during their menstrual lifetime. It is usually nothing to worry about and can be managed by using the right menstrual hygiene product that suits your flow.


Signs of blood clots during your period

  • A blood clot is a thick mass of menstrual blood that is expelled from your body when you menstruate.
  • Clots are most common during the heaviest part of your flow – which is usually the first few days.

What causes period blood clots?

During menstruation, the thick lining of your uterus (womb) breaks away. As you menstruate, anticoagulants are released that break down thick menstrual blood before it leaves your body. During a heavy flow, blood is expelled faster and the anticoagulants may not have enough time to break down the blood. That’s when the clots form.

Check out our Menstrual Cycle page to see what happens to your body at each stage of your cycle.

Is my period blood normal?

Uncertain about blood clots during your period?

Period blood clots can vary in colour and consistency. Clots are generally bright or darker red and can sometimes make your menstrual flow seem dense and thick.

It is normal for the appearance to change from one period to the next. However, if your period is regularly very heavy, and you are passing many large, thick clots, then visit a doctor for a health check.

A healthy way to manage clots

Menstrual clots are common and usually need no further medical treatment. The best way to manage blood clots is to use a menstrual product that helps you deal with clotting easily, for example, a menstrual cup.

Tampons and pads absorb period flow but cannot absorb thick blood or menstrual blood clots. Menstrual cups are different, they collect your flow and menstrual clots as they leave your body naturally. Here is how to use a menstrual cup.

Because cups collect blood clots, you are able to see the menstrual blood that is passed from your body. This can be important so you get to know the colour, consistency and quantity of blood lost during your period. Knowing more about your flow means you can spot any significant changes to your menstrual health.

Have a look at Get Started With a Menstrual Cup to make the change to a healthier hygiene solution.

When to see a doctor

If you are passing many thick, large clots or bleeding heavily every month, it could be caused by a health issue. Visiting your doctor will help you rule out any further problems. There can occasionally be other causes for blood clots such as hormonal changes, miscarriage, menopause or endometriosis. If you are concerned, get a consult with your doctor.

Learn more

If you have any questions or concerns about period problems or want to know more about menstrual hygiene options, check our additional info pages: