Holding in urine at night with a vague pain in the right kidney may be kidney stones, hydronephrosis, urinary tract infection, etc., and you should consult a doctor in time to find out the cause of the disease. 1.Kidney stones:Holding urine for a long time can lead to kidney stones, and when the stones grow to a certain extent, they may cause pain in the kidney area. If you want to relieve the kidney pain. 2. hydronephrosis: long-term urine holding, will lead to the continuous accumulation of urine in the bladder, when the urine in the bladder to reach the upper limit of the bladder, the pressure in the bladder continues to increase, easy to cause urine reflux and thus enter the ureter, and may even cause hydronephrosis, if the hydronephrosis then may lead to the right kidney hidden pain. 3. Urinary tract infection: If there is an infection in the urinary tract, most of the frequency of urination, urinary urgency, there may be a hidden pain in the right kidney symptoms. You should drink more water and urinate more often in your daily life, and you should also pay attention to personal hygiene. If the symptoms of right kidney pain at night, it is recommended that the patient timely consult a doctor to clarify the cause of the disease and give targeted treatment.