Why are menstruation black?
Recently, discussions about abnormal menstrual color have become a hot topic on social media, with many women expressing doubts: "Why is my menstrual blood black?" This article will combine the hot content on the Internet in the past 10 days to analyze this phenomenon from a medical perspective, and provide structured data to help readers better understand.
1. Common causes of abnormal menstrual color

| Reason | Proportion (discussion popularity in the past 10 days) | Typical symptoms |
|---|---|---|
| oxidation reaction | 42% | Menstrual blood becomes darker in color when exposed to air |
| Retention of menstrual blood | 28% | Light bleeding at the beginning or end of menstruation |
| Hormone fluctuations | 15% | With irregular menstrual cycles |
| Gynecological diseases | 10% | Accompanied by abdominal pain, odor, etc. |
| other reasons | 5% | Drug effects, stress, etc. |
2. Medical experts interpret black menstrual blood
According to the popular science content of gynecologists in the past 10 days, black menstrual blood is usually a symptom of the following conditions:
1.normal physiological phenomena: A small amount of menstrual blood at the beginning or end of menstruation stays in the vagina for a long time. After the hemoglobin is oxidized, the color becomes dark red or black.
2.Symptoms of uterine cold: Traditional Chinese medicine theory believes that cold exposure in the uterus will cause menstrual blood to accumulate, causing poor drainage and the formation of black blood clots.
3.disease signal: Be alert when black menstrual blood is accompanied by the following symptoms:
- Strong abdominal pain
- Abnormal discharge
- Disturbed menstrual cycle for more than 3 months
3. Hot data discussed on the entire network
| Platform | Related topic readings | Hottest discussion points |
|---|---|---|
| 120 million | "Is Black Blood sick?" | |
| little red book | 86 million | "Sharing of menstrual care methods" |
| Zhihu | 43 million | "Medical explanation of black menstrual blood" |
| Douyin | 230 million | "Self-test Menstrual Blood Color" Topic Challenge |
4. Improvement suggestions
According to the recommended content of health bloggers in the past 10 days:
1.Warming measures:
- Avoid cold drinks during menstruation
- Use the baby warmer to warm your belly
2.diet conditioning:
- Increase warming foods such as red dates and brown sugar
- Supplement iron to prevent anemia
3.Exercise advice:
- Moderate yoga promotes blood circulation
- Avoid strenuous exercise
5. When Do You Need Medical Treatment?
| red flag | Recommended time for medical treatment |
|---|---|
| Abnormal menstrual cycles for 3 consecutive years | seek medical attention immediately |
| accompanied by severe pain | Within 24 hours |
| Sudden increase in bleeding | Within 48 hours |
| Have fever symptoms | seek medical attention immediately |
6. Sharing of real experiences by netizens
According to the analysis of UGC content on social platforms:
1. Case of 28-year-old white-collar worker:
"My menstrual blood has been dark for half a year. The examination revealed that the function of the corpus luteum was insufficient. After 3 months of hormone conditioning, it returned to normal."
2. College student case:
"My menstrual blood was very dark during the semester when I was under a lot of pressure for exams. It improved automatically after the holidays. The doctor said it was hormonal changes caused by stress."
Summary:Black menstrual blood is a normal physiological phenomenon in most cases, but if it persists or is accompanied by other symptoms, you need to seek medical attention in time. It is recommended that women undergo regular gynecological examinations, establish menstrual health files, and scientifically manage menstrual cycles.
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