Stomach pain without menstruation may be pregnancy, premenstrual syndrome, pelvic inflammatory disease, cervical canal adhesion and so on. It is recommended to consult a doctor in a timely manner to clarify the condition and take targeted treatment according to the doctor’s instructions, do not self-medication, so as not to delay or aggravate the condition. 1. Pregnancy: first of all, menstruation is delayed to make clear whether there is pregnancy, after pregnancy, women will stop menstruation, this time abdominal pain may be a pre-eclampsia or ectopic pregnancy, we need to improve the relevant examinations and laboratory tests in a timely manner, to clarify the condition of a normal pregnancy can be followed by the doctor’s instructions for temporary observation or to take the treatment of fetal preservation. For ectopic pregnancy, it is recommended to follow the doctor’s advice to carry out medication or surgical treatment in a timely manner. 2. Premenstrual syndrome: Some women may experience lower abdominal pain before menstruation due to changes in hormone levels in the body, which may lead to pelvic congestion. It is recommended to pay more attention to keep warm, appropriate activities, and wait for the onset of menstruation after the symptoms can be relieved or disappear. 3. Pelvic inflammatory disease: Pelvic inflammatory disease can lead to lower abdominal pain, not necessarily related to menstruation, but also abnormal menstruation, leukorrhea and other abnormalities. Cefdinir, azithromycin, metronidazole and other medications should be used under doctor’s supervision after diagnosis. 4. Cervical tube adhesion: If you have recently undergone abortion, purging and other uterine operations, now during menstruation, there is no menstrual blood flow, and after perfecting the relevant examination, it is clear that there is cervical tube adhesion, you can be carried out by a professional doctor to separate the cervical tube adhesion surgery. The stomach pain and menstruation may also be two diseases, abdominal pain may be caused by digestive diseases, urinary system, delayed menstruation may also be endocrine disorders, it is recommended to go to the hospital in a timely manner, combined with the relevant examination, to clarify the specific cause of the disease after targeted treatment.