There is no fastest way to expel 5mm kidney stones, the common treatment methods are general treatment, oral litholytic drug treatment, oral lithotripsy drug treatment and so on. 1. General treatment: the strategy of treatment is to correct the predisposing factors of stones, according to 24-hour urine composition analysis and blood biochemical examination, adjust the dietary structure and drinking habits; control BMI lower than 25kg/m^2; make the 24-hour urine volume maintain above 2000ml, for patients with high urinary calcium, salt restriction, ensure the daily calcium intake of 1,000mg, and eat less oxalic acid-rich food; appropriate exercise. 2. Oral lithotripsy medication: need to combine different stone components, uric acid stones can be taken orally with sodium citrate, cystine stones can be taken orally with sodium polyhydric acid and captopril, and so on. 3. Oral lithotripsy medication: such as lithotripsy granules, urolithotripsy, etc., can promote the discharge of stones. If there are 5 mm kidney stones, it is recommended to consult a regular hospital, patients can choose the most suitable method for themselves under the guidance of doctors according to their own situation. Drugs should be applied under the guidance of doctors.