Soreness in both kidney areas may be related to urinary tract infection, urinary stones, lumbar muscle strain, gynecological diseases, etc., and should be judged in conjunction with other symptoms and examinations. 1. Urinary tract infection: especially pyelonephritis, inflammation occurs in the kidneys, and when the infection is serious, it may cause soreness in the kidney area, accompanied by fever, fatigue, hematuria and other symptoms. Urine routine often suggests that there are white blood cells, red blood cells and so on. 2. Urinary stones: hematuria, lumbar pain and other symptoms, combined with the symptoms of infection can be the same as urinary tract infection. Urinary ultrasound shows stones, hydronephrosis and so on. 3. Lumbar muscle strain: often due to the history of lumbar sprain, conscious lumbosacral pain, dull pain, especially when bending over to work, and can be relieved by resting, stretching or knocking the waist. 4. Gynecological diseases, such as pelvic, uterine adnexal inflammation can appear radioactive lumbar pain, bilateral adnexal area can have pressure pain, gynecological ultrasound can be seen pelvic effusion. There may be other reasons for the pain in both kidneys, it is recommended that the patient go to the regular hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.