Urinary stones include kidney stones, ureteral stones, bladder stones and urethral stones, also called urinary stones and urolithiasis. The causes of long stones are complex, and some stone etiologies can be found through blood and urine tests. The causes of stones include three general aspects: 1, systemic metabolic factors: including hypercalciuria, hyperoxaluria, hyperuricuria, hypocitraturia, cystinuria, xanthinuria, dihydroxyadenosineuria, drug stones, etc. 2, local factors of urinary tract: including urinary retention such as hydronephrosis and chronic urinary retention, urinary tract infection, urinary tract foreign body, etc. 3, other factors: such as gender and age, mostly seen in male young adults; nutritional factors, the better you eat, the more likely to grow stones; geographic environment, the south of China is a high incidence areas, such as the two lakes, two wide cloud, Guizhou and Sichuan; and genetics, race, occupation and other factors.