In ancient times, Solanum nigrum refers to women's menstruation, and Solanum nigrum refers to women's menstrual cramps, which is currently used as the name of menstruation in traditional Chinese medicine. The first menstrual period for women is called menarche, which is an important symbol of adolescence. Menstrual period often indicates that the estrogen produced by the ovary makes the endometrium proliferate, and when the estrogen reaches a certain level, it causes the endometrium to fall off when there is obvious fluctuation.

Women's Solanum nigrum is menstrual cramps. When women's endometrium is under the periodic action of estrogen and progesterone secreted by ovaries, there will be changes in proliferation period and secretion period. When women's ovarian corpus luteum atrophy, estrogen and progesterone levels suddenly drop, which will bring about insufficient blood supply to the endometrium, and then exfoliative bleeding, that is, menstrual cramps.

Menstruation refers to the periodic shedding and bleeding of endometrium accompanied by the periodic changes of ovaries. The appearance of regular menstruation is an important symbol of the maturity of reproductive function and an important physiological phenomenon of women in reproductive period. Normal menstruation is periodic and self-limited. The first 1 day of bleeding is the beginning of menstrualcycle, and the interval between two menstrual periods is called a menstrual cycle.

It is forbidden to eat spicy, irritating and cold food during menstruation. Try not to do strenuous activities, so as not to increase menstrual flow, and you can't stay up all night tired. At the same time, you should pay attention to keeping your abdomen warm to avoid catching cold.

During menstruation, women need to pay attention to the following aspects:

1, keep clean: During menstruation, women's reproductive system is more vulnerable to bacteria, so keep private parts clean and change sanitary napkins regularly.

2, diet conditioning: during menstruation, you should avoid eating cold drinks and cold food, eat more fresh vegetables and fruits, and maintain a balanced diet.

3, moderate exercise: moderate exercise can help relieve dysmenorrhea, but it is not appropriate to do strenuous exercise.

4. Avoid overwork: We should ensure adequate rest and avoid overwork.

5, avoid mood swings: During menstruation, women's emotions may be more sensitive, so try to maintain a happy mood and avoid mood swings.

6, try to avoid contact with cold water: it is not appropriate to take a cold bath or swim during menstruation, so as not to cause bacterial infection.

7. Avoid using underwear-type sanitary napkins: underwear-type sanitary napkins are relatively closed, which is easy to cause gynecological diseases.