Why do I get blood clots when I have my period?
It's common for women to experience blood clots during their menstrual period, but many people have questions about the cause and whether it's normal. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed analysis of the causes of menstrual blood clots, possible influencing factors, and when you need to seek medical treatment.
1. Causes of menstrual blood clots

Menstrual blood clots are mainly caused by the failure of fibrin in menstrual blood to completely dissolve, causing blood coagulation. Here are a few common reasons:
| Reason | Description |
|---|---|
| normal physiological phenomena | When fibrin in menstrual blood is not completely dissolved, small blood clots, usually dark red or black, form. |
| Heavy menstrual bleeding | When menstrual bleeding is heavy, the body cannot dissolve all the fibrin in time, causing blood clots to form. |
| Abnormal position of the uterus | If the uterus bends backward or forward, it may affect the discharge speed of menstrual blood and increase the probability of blood clots. |
| Fluctuations in hormone levels | An imbalance of estrogen and progesterone may affect how the uterine lining is shed. |
2. Factors affecting menstrual blood clots
The following factors may increase the likelihood or severity of menstrual blood clots:
| Influencing factors | Specific performance |
|---|---|
| Sedentary | This causes menstrual blood to accumulate in the vagina and then be discharged, easily forming larger blood clots. |
| catch cold | Pelvic blood circulation becomes poor and menstrual blood is not discharged smoothly. |
| Too much pressure | Affects the endocrine system and may cause menstrual abnormalities. |
| certain diseases | Such as uterine fibroids, endometrial polyps, adenomyosis, etc. |
3. Situations that require vigilance
While most menstrual blood clots are normal, it is recommended to seek medical attention if:
1. Blood clots are larger than a coin and appear frequently
2. Accompanied by severe dysmenorrhea or abdominal pain
3. The menstrual period is obviously prolonged or the menstrual volume suddenly increases
4. The color of the blood clot is abnormal (such as bright red or accompanied by a peculiar smell)
5. Anemia symptoms such as dizziness and fatigue occur
4. How to improve the problem of menstrual blood clots
For normal menstrual blood clots, it can be improved by:
| Improvement methods | specific suggestions |
|---|---|
| moderate exercise | Promote pelvic blood circulation and help menstrual blood drain smoothly. |
| Keep warm | Especially the abdomen and feet should be kept warm to avoid catching cold. |
| balanced diet | Supplement iron-containing foods to prevent anemia, and supplement vitamin K in appropriate amounts. |
| Regulate emotions | Keep a good mood and avoid excessive tension and stress. |
5. FAQs
Q: Does having more blood clots mean you are in poor health?
A: Not necessarily. Occasionally small blood clots are normal and only require concern when accompanied by other abnormal symptoms.
Q: Is it normal for blood clots to turn black?
A: Menstrual blood will oxidize and turn black when it stays in the body for a long time. There is usually no need to worry.
Q: Will taking birth control pills affect blood clot formation?
A: Yes. Birth control pills may change menstrual flow and blood coagulation, so it is recommended to consult a doctor.
6. Professional advice
If you have concerns about menstrual blood clots, it is recommended to:
1. Record menstrual cycles, blood clots and accompanying symptoms
2. Carry out routine gynecological examination every year
3. If necessary, perform B-ultrasound examination to rule out organic diseases.
Remember, it's important to know what's going on with your body, but don't worry too much about every little change. By maintaining a healthy lifestyle and regular physical examinations, you can better maintain your reproductive health.
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