Abdominal pain without menstruation may be due to primary dysmenorrhea, adenomyosis, fibroids and other factors.
1. Primary dysmenorrhea: When a woman has her menstrual period, her body produces a kind of prostaglandin, and too much prostaglandin can make the uterus over-contracted and vascular spasm, leading to uterine ischemia and hypoxia, which in turn causes dysmenorrhea. The pain is spasmodic, often located in the lower abdomen, and can spread to the waist and inner thighs.
2. Uterine adenomyosis: it refers to the appearance of glands and mesenchymal stroma in the uterine endometrium in the myometrium, and the patients may have increased menstrual flow, prolonged duration of menstruation, and accompanied by abdominal pain, which is mostly located in the middle of the lower abdomen, and it may appear one week before the onset of menstruation, and disappears after menstruation is over, and the pain will be aggravated progressively.
3. Uterine fibroids: uterine fibroids is a kind of common benign tumor in gynecology, patients with uterine fibroids can also have prolonged menstrual period and abdominal pain due to the compression of fibroids on the lower abdomen, accompanied by abnormal vaginal secretion, etc. In addition, there are many other causes that can cause menstrual pain.
In addition, there are many other causes of menstrual pain, it is recommended that patients go to the hospital in a timely manner to identify the cause of the disease, and then take targeted treatment.