What causes a feeling of pressure and distension pain in the lower abdomen?

The causes of lower abdominal distension and pain may include: 1. **Gastrointestinal issues**: Such as intestinal gas accumulation, constipation, or intestinal inflammation, which can lead to abdominal discomfort, often accompanied by changes in bowel habits. 2. **Gynecological diseases**: Such as dysmenorrhea, ovarian cysts, or pelvic inflammatory disease. Especially during inflammatory infections, strong irritation in the lower abdomen can occur, causing distension, pain, and a sensation of pressure. 3. **Urinary tract infections**: Such as cystitis or urethritis, which may also cause lower abdominal distension and pain, typically accompanied by symptoms like frequent or urgent urination. 4. **Tumorous conditions**: Such as ovarian tumors or endometrial cancer, which may lead to a feeling of distension, pain, and pressure in the lower abdomen, and may even be accompanied by back pain. 5. **Other factors**: Such as improper diet, mental stress, menstrual irregularities, pregnancy, or ovulation, which may also cause lower abdominal distension and pain.