The cause of stone formation has not been fully elucidated, usually seen in men aged 20 to 40 years old, stones are formed in the kidneys and bladder, its composition is uric acid, calcium oxalate and magnesium ammonium phosphate, etc., with different shapes and sizes, which can cause urinary tract obstruction, infection and mucosal damage. Generally unilateral stones. [Etiology] The etiology is unknown, and may be due to a variety of factors, such as urinary salt precipitation, urinary tract infection, urinary tract obstruction, hyperparathyroidism, and colloid-crystal balance imbalance. [Clinical manifestations] Sudden onset of paroxysmal lumbar pain that radiates downward to the lower abdomen and inguinal region, accompanied by sweating, pallor, and hematuria of the naked eye when the pain is severe. [Diagnostic Points] (1) Sudden onset of paroxysmal colicky pain in the bladder area radiating to the lower abdomen and inguinal region. (2) There may be percussion pain in the renal region. (3) There may be carnal hematuria when the pain is severe, and there is usually microscopic hematuria. (4) Renal ultrasound and imaging may show stone shadows. (5) The collection of urine after the onset of pain may reveal the phenomenon of stone discharge. [Differential diagnosis] (1) Renal tuberculosis and renal tumors Renal tuberculosis and renal tumors may have clinical symptoms such as renal pain and pressure, microscopic hematuria, etc., and should be distinguished from renal and ureteral stones, which seldom have colicky pain, and ultrasound and X-ray examination may help to distinguish them. (2) Acute appendicitis right lower abdominal pain in right ureteral stone is easy to be confused with appendicitis, need to be differentiated. Acute appendicitis, abdominal pain is as severe and persistent as stone, localized pressure, rebound pain and muscle tension, there may be fever and elevated white blood cell count, urine examination may not have red blood cells, ultrasound and X-ray may not have the shadow of the stone. It can be distinguished from the former. (3)Cholelithiasis Right kidney stones should be differentiated from cholelithiasis. Gallstones mainly cause right upper abdominal pain radiating to the right shoulder and back, and ultrasound and cholecystography can detect stone shadows, which can help to differentiate. (4) Acute pyelonephritis Acute pyelonephritis can have hematuria, which should be differentiated from kidney and ureteral stones, but the former has fever and other symptoms of toxicity, and ultrasound and X-ray can help to differentiate. [Family emergency treatment] (1) Bed rest, encourage the patient to drink more water, is conducive to stone removal. (2) When the pain in the kidney area is severe, hot compresses or oral atropine 0.5mg 3 times a day can be used, or acupuncture kidney Yu, Sanyinjiao, foot Sanli acupuncture points, with pain relief and promote lithotripsy. (3) If accompanied by urinary tract infection, oral piperacid 0.5g or haloperidol 0.2g, 3 times a day. (4) After the above emergency treatment, it should be sent to hospital for further consultation.