What does normal menstruation look like?
Menstruation is a barometer of female reproductive health. Understanding the characteristics of normal menstruation can help women detect physical abnormalities in time. This article will combine the hot topics and hot content on the Internet in the past 10 days, analyze the standards of normal menstruation in detail from aspects such as cycle, blood volume, color, etc., and provide structured data for reference.
1. Menstrual cycle
A normal menstrual cycle usually lasts from 21 to 35 days, with an average of 28 days. Period calculations start on the first day of menstruation and end on the day before the next menstrual period.
| indicator | normal range | abnormal signal |
|---|---|---|
| cycle length | 21-35 days | ＜21 days or＞35 days |
| cyclical fluctuations | Within ±7 days | Continuous cycle difference>7 days |
2. Menstrual period duration
A normal menstrual period usually lasts 3-7 days, and for most women it lasts 4-5 days.
| menstrual period days | Proportion | Things to note |
|---|---|---|
| 3 days | 15% female | It is necessary to observe whether it is accompanied by low blood volume |
| 4-5 days | 60% female | most common situation |
| 6-7 days | 25% female | Uterine fibroids and other pathologies need to be ruled out |
3. Menstrual blood volume
The total blood volume in a single menstrual period is about 20-80ml. If it exceeds 80ml, it is considered as menorrhagia.
| Assessment method | normal standard | abnormal behavior |
|---|---|---|
| sanitary napkin replacement | 1-2 tablets every 4 hours | Need to be replaced every hour |
| Blood clot size | | Table tennis size | |
| anemia symptoms | None | Fatigue, dizziness |
4. Color changes of menstrual blood
The color of menstrual blood will naturally change with the progression of menstruation, reflecting different physiological states.
| color | Appearance time | health significance |
|---|---|---|
| bright red | Day 1-2 of menstrual period | Fresh bleeding, fast flow |
| dark red | mid menstrual period | normal oxidation |
| brown black | end of menstrual period | Drainage of old blood |
5. Accompanying symptoms
Normal menstruation may be accompanied by slight discomfort, but it should not affect normal life.
| Symptoms | Normal level | early warning sign |
|---|---|---|
| Lower abdominal distension | Mild, 1-2 days | persistent severe pain |
| Backache | Can be relieved on its own | Radiation to lower limbs |
| breast tenderness | 1 week before menstruation | Continuing and not retreating |
6. Situations requiring medical treatment
When the following situations occur, it is recommended to seek gynecological consultation in time:
| Symptoms | Possible reasons | Check recommendations |
|---|---|---|
| Amenorrhea >3 months | Polycystic ovary/premature insufficiency | Six items of sex hormones |
| Menstrual period >10 days | intimal disease | B-ultrasound examination |
| severe dysmenorrhea | endometriosis | CA125 detection |
Understanding the characteristics of normal menstruation is critical to women's health management. It is recommended that every woman establish a menstrual file to record data such as cycle, menstrual period, blood volume, etc. This will help in early detection of gynecological diseases. If any abnormalities mentioned in the article occur, please seek medical examination in time.
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