The right side pain of female waist is mainly caused by urological lesions, lumbar dorsal musculoskeletal fasciitis, acute lumbar sprain, sacroiliac arthritis as well as adnexitis and pelvic inflammatory disease. 1. Urological lesions: such as urinary stones or pyelonephritis, etc., usually accompanied by hematuria or proteinuria, etc., which can be clearly diagnosed through imaging and hematological examinations. 2. Myofasciitis of the lumbar back: mostly caused by strain injury, such as long-term bending, sitting for a long time, etc., the pain is aching and swelling discomfort. 3. Acute lumbar sprain: usually caused by sudden force or poor posture when carrying heavy objects, with severe limitation of the right lumbar spine. 4. Sacroiliac arthritis: mostly occurring in middle-aged and elderly female patients, pressure and pain in the right sacroiliac joint, X-ray film can show that the sacroiliac joint local sclerosis, osteophytes or even gap narrowing. 5. Some gynecological diseases: such as pelvic inflammatory disease and adnexal inflammation. The causes of women’s lower back pain on the right side of the waist are more complicated, if you do not see relief after resting or recurring, you need to consult a doctor in time.