Patients with kidney stones in the lower calyx of the right kidney, with a stone diameter of 7mm*4mm can be treated with medication, surgery, general treatment and other ways of treatment. 1. Medication: the patient’s kidney stones in the lower calyx of the kidney, with a diameter of 7mm*4mm, belong to small stones, but for this part of the kidney stones are not easy to be discharged on their own, you can follow the doctor’s instructions to take medication such as lithotripsy granules to help discharge the stone, and at the same time, drink more water, exercise and diligent urination, which will help discharge the kidney stones. 2. Surgery: After the above treatment, if the patient has recurring renal colic, surgery should be considered, and extracorporeal ultrasonic impact lithotripsy can be chosen as the treatment method. 3. General treatment: Drinking more water and urinating more often will be conducive to the discharge of stones. Patients usually have discomfort, timely to the hospital for examination, do not be careless, not blindly self-medication, so as not to delay the treatment.