It is normal to develop kidney stones at the age of 27. Kidney stones belong to the upper urinary tract stones, is a common urological diseases, refers to the crystal material (such as calcium, urate, etc.) from the urine precipitation and deposition in the kidneys, the disease prevalent age of 25 ~ 40 years old, usually more common in males than females, so 27 years old kidney stones normal. The cause of kidney stones is complex, and the mechanism of stone formation is not yet completely clear, mostly related to metabolic abnormalities, urinary tract infections, and drug factors. Patients with kidney stones usually experience pain in the kidney area, blood in the urine, nausea, vomiting and other symptoms, and can be accompanied by frequent urination, urinary urgency, urinary pain and other phenomena. Once diagnosed with kidney stones, it is necessary to receive treatment as soon as possible in order to obtain a good prognosis. If treatment is not carried out in a timely manner, it may lead to urinary tract obstruction, which may lead to infections, and in serious cases, it may also lead to renal hypoplasia. Patients are advised to keep a good mindset and actively cooperate with doctors for treatment.