Ureteral stones do not usually cause constipation, but may cause complications such as hydronephrosis. Constipation is usually caused by improper diet, indigestion, slow bowel movement and other factors, ureteral stones do not directly stimulate the intestinal tract, causing intestinal discomfort, which in turn can not lead to constipation. Ureteral stones are usually caused by metabolic abnormalities, drug stimulation, infection and other factors that lead to the phenomenon of stones in the ureter, ureteral stones may appear hematuria, pain and other symptoms, conservative treatment, extracorporeal lithotripsy, surgical lithotripsy and other surgical procedures to treat. Hydronephrosis is usually due to ureteral stones in the ureter, which may lead to ureteral obstruction, so that the urine discharge in the kidney is blocked, and there is a collection of urine in the kidneys, which in turn leads to the phenomenon of hydronephrosis. Generally, if timely treatment is carried out, so that the ureter is restored to be open, and the kidney function can be restored to normal. If the phenomenon of ureteral stone, should be timely to the hospital for consultation, so as not to delay the condition, adverse consequences.