The pain in the abdomen like dysmenorrhea but without menstruation is mainly considered to be related to premenstrual signs, endometriosis, chronic pelvic inflammatory disease and other causes, which need to be treated after clarifying the cause. Common causes and treatments 1, menstrual precursors: at this time, if close to the time of menstruation, consider the pain caused by menstrual precursors. The hormone level in women’s bodies changes when they are approaching their menstrual period, due to the increased level of prostaglandins and pelvic congestion, resulting in pain in the abdomen, some women may have dysmenorrhea-like pain a few days before the onset of menstruation, which is normal and need not be too worried. If the pain is unbearable, you can take ibuprofen for pain relief; 2, endometriosis: because the endometrial tissue appears in the uterine cavity and outside the myometrium, 1-2 days before the onset of menstruation, the pelvic cavity is congested by hormonal influence, which can lead to pain and other symptoms, the disease is commonly used drugs such as mifepristone, danazol, progesterone, etc., which are recommended to be taken under the guidance of a doctor; 3, gynecological inflammatory diseases: such as pelvic inflammatory disease, cervicitis, etc., due to the invasion of pathogens, repeated stimulation, triggering inflammation, and the formation of adhesions, scarring, etc., patients can appear small abdominal pain like dysmenorrhea, may not have vaginal bleeding performance. The patient can go to hospital for professional examination, such as colposcopy, HPV examination, routine white belt examination, ultrasound, etc. After examination, the patient should take standardized medication under the guidance of doctors, such as oral metronidazole tablets, cefuroxime capsules, levofloxacin tablets and other antibiotics, and pay attention to regular review to prevent recurrence; 4. gynecological tumors: cervical cancer, pelvic masses, etc. due to local masses invasion of blood vessels, nerves, etc., resulting in the appearance of small abdominal pain like dysmenorrhea like menstrual pain, but without menstruation. It is recommended to go to the hospital for relevant examinations, such as CT, ultrasound, pathological tissue biopsy, etc., and formulate a treatment plan after diagnosis, which is usually surgical removal with chemotherapy or radiotherapy. If the abdomen is like dysmenorrhea but without menstruation, attention should be paid to the presence of other symptoms, such as fever, local swelling, etc. It is recommended to go to the hospital for relevant examinations, exclude the cause and treat in a timely manner.