When bending over, the left side of the kidney hurts, first of all, we should clarify the cause of the pain, according to the cause of the disease to choose the appropriate treatment. Commonly in the urinary tract infection, fasciitis, lumbar disc herniation, etc., can take anti-infection, oral pain medication, surgical treatment and other ways of treatment. 1. Urinary tract infections: patients can be manifested as frequent urination, urinary urgency, urinary pain, some patients with upper urinary tract infections, can be manifested as lumbar pain, fever, chills, etc., of which lumbar pain can be described as bending over when the left kidney area pain performance, this time need to comply with the doctor’s instructions for anti-infective treatment, can be used for amoxicillin, cefuroxime and so on. 2. Fasciitis: Fasciitis of the left lumbar kidney area can also appear as bending pain symptoms. As bending will make the muscles of the waist tense, which can make the inflammation area of the myofascial tension increases, so it will also make the inflammatory lesions of the fascial tissues produce pain. This can be treated with drugs such as celecoxib and diclofenac sodium. 3. Lumbar disc herniation: If you have a lumbar disc herniation, you may also experience pain in the kidney region. If the diagnosis is related to this cause, analgesic and anti-inflammatory drugs such as ibuprofen and meloxicam can be taken to relieve the pain. Surgical treatment may be given if necessary. Due to the different conditions and individual circumstances, the use of the above medications should be carried out under the guidance of a doctor to avoid improper use of medication to delay the condition. There are many causes of pain in the left kidney area when bending over, so it is recommended that the patient consult a doctor in time to clarify the cause of the disease and follow the doctor’s instructions for treatment.