Adenomyosis refers to adenomyosis of the uterus. Patients with adenomyosis have clear leukorrhea and vague pain in the stomach at night, which are considered to be related to adenomyosis, ovulation, cervicitis and other factors. 1. Adenomyosis: adenomyosis is mainly due to the endometrial glands and mesenchymal invasion of the myometrium, this kind of patients will have obvious symptoms of increased menstrual flow, prolonged menstruation and dysmenorrhea, and some patients may have an increase in leukorrhea secretion, which is mainly related to the disease. 2. Ovulation: For patients with adenomyosis, there may be clear and silky leukorrhea during ovulation, and the amount of leukorrhea increases, accompanied by symptoms of hidden pain in the stomach at night. 3. Cervicitis: This is an inflammation of the vaginal part of the cervix and the mucous membrane of the cervical canal, and this kind of patient will have an increase in vaginal discharge, accompanied by symptoms of hidden pain in the stomach, which is mainly related to the inflammatory factors. Patients with adenomyosis who have clear leukorrhea and stomach pain at night may also have other causes, so cooperate with your doctor for further examination and treatment if necessary.