Pain on the right side of the abdomen may be a problem with the fallopian tubes, or it may be due to other causes of pain. If a woman is in ovulation, it is usually related to the stimulation of the fallopian tube during the rupture and discharge of the follicle during ovulation, which is a normal physiological phenomenon. The pain can usually be relieved or disappeared within a short period of time by maintaining good rest and relaxation habits. In addition, there are many clinical causes of pain on the right side of the abdomen, such as right-sided tubal inflammation, right-sided tubal pregnancy, and ruptured corpus luteum.1. Right-sided tubal inflammation: Tubal inflammation is a common infectious disease of the upper female reproductive tract, often accompanied by other pelvic inflammatory diseases. When the inflammation of the fallopian tube invades through the broken hole of ovarian ovulation, it can form a tubo-ovarian abscess. It may be accompanied by pain on the right side of the abdomen, which is mostly persistent and worsens after activity or sexual intercourse. It is accompanied by increased vaginal discharge, frequent urination, urgent urination, painful urination, etc. In severe cases, fever may appear. 2. Right-sided tubal pregnancy: mainly refers to the rupture of tubal pregnancy or miscarriage, patients may have pain on the right side of the abdomen, accompanied by menopause and irregular vaginal bleeding. It usually requires blood HCG test and transvaginal ultrasound to help clarify the diagnosis. Once diagnosed, the patient needs to be admitted to the hospital immediately for emergency surgery; 3. Luteal rupture: it is common in young women and tends to occur within 1 week after mid-menstruation, often related to trauma and sexual intercourse. When the right ovarian corpus luteum ruptures, it may cause the patient to experience pain in the right side of the abdomen. The pain is related to the degree of rupture and may be accompanied by nausea, vomiting, dizziness and other symptoms, and severe shock may occur. Usually, rest should be promptly and medication should be applied as prescribed by the doctor, such as tranexamic acid tablets, etc. If conservative treatment is not effective, surgical treatment can be applied according to the patient’s condition, etc. 4. Acute appendicitis: Patients with acute appendicitis will also have typical symptoms of pain on the right side of the abdomen, often accompanied by weakness, nausea, loss of appetite and other conditions. Clinicians can usually help diagnose through physical examination and ultrasonography; 5. Ovarian cyst torsion or rupture: When ovarian cysts exist in patients, they can be complicated by torsion or rupture, which may lead to local inflammation and can cause pain on the right side of the abdomen. The diagnosis can usually be made clearly by ultrasound examination. In addition, urinary system diseases and digestive system diseases can also cause pain on the right side of the abdomen. Digestive system diseases such as mesenteric lymphadenitis, Crohn’s disease, gastric ulcer, duodenal ulcer, ulcerative colitis, etc., and urinary system diseases such as urinary stones, acute pyelonephritis, etc. Some women with dysmenorrhea, pelvic inflammatory disease, uterine lesions such as fibroids, endometriosis, ovarian lesions such as ovarian tumors, etc. may also have pain on the right side of the abdomen. Therefore, the diagnosis of tubal lesions cannot be determined by a single symptom alone, but needs to be combined with medical history and examination to help clarify the diagnosis.