Drinking a lot of water but not going to the toilet may be caused by physiological factors or pathological factors such as glomerular disease and urinary tract obstruction. 1. Physiological factors: the weather is hot, sweating more, resulting in excessive loss of body water, after drinking a lot of water, it will be temporarily in a state of no urine, only to continue to replenish water, to achieve fluid balance will be normal after urination. 2. Pathological factors: (1) renal disease: for example, nephrotic syndrome, may lead to abnormal renal function, it will lead to drink a lot of water without going to the toilet, but the patient’s lower limbs and facial areas will appear edema. (2) Urinary tract obstruction: for example, prostate hyperplasia, ureteral stones, urethral stenosis, etc., which may lead to urinary tract obstruction, and the urine will not be discharged even though it is produced after drinking water. Drinking a lot of water but do not go to the toilet, and accompanied by other abnormalities, you should consult a doctor in a timely manner, improve the relevant examination, clarify the cause of the disease, and actively comply with the doctor’s instructions to standardize the treatment, so as to avoid delaying the condition.