In the first aspect, some people are not very sensitive to the prostaglandin secreted in the body, that is, the threshold of pain will be lower, or the prostaglandin secreted in the body is relatively more, so they will feel pain.

In the second aspect, because some people's uterus is excessively bent, leaning forward or leaning back, menstrual blood discharge is blocked, which leads to uterine spasm, and menstrual blood discharge causes uterine contraction and feels pain.

Thirdly, due to some organic factors, such as adenomyosis, hysteromyoma, or some aspects of uterine inflammation, such as endometritis and hysteromyositis, dysmenorrhea will also occur during menstruation, mainly secondary dysmenorrhea.

Therefore, women should pay attention to adjusting their emotions in the process of life, do not cause dysmenorrhea because of the relatively sensitive state of prostaglandin, reduce some pressure, stay up late as little as possible, adjust their lifestyle, and avoid dysmenorrhea caused by increased prostaglandin secretion. Acute inflammation, such as cervicitis, vaginitis and endometritis, can lead to dysmenorrhea in women, because when inflammation occurs, the exudation of inflammation and bacterial secretion can stimulate the sensory nerves of the skin and mucosa at the corresponding lesion site. During menstruation, the body is in a sensitive state and responds quickly to stimuli. If there is inflammation, menstrual period can easily cause dysmenorrhea.

It is caused by physical weakness. Chinese medicine believes that it hurts if it doesn't work. If women are weak and lack of qi and blood, qi can't control blood and blood circulation will stagnate. During menstruation, blood can't flow out of the vagina in time, forming blood stasis locally, which can also cause dysmenorrhea.