The most common cause of frequent urination after holding urine is that the bladder muscle function is impaired after holding urine, so it becomes frequent. Urological ultrasound, urinary routine, urography, cystoscopy, and urodynamics must be checked to confirm the cause of frequent urination. If these tests are normal, it is considered to be a psychological factor caused by holding urine. You must adjust your mind by yourself, arrange your regular schedule of work and rest reasonably, and then take oral tamsulosin hydrochloride, 0.2mg every night to relieve the symptoms. The key is to let the bladder rest, flush the bladder, drink more water and urinate more often to relieve the symptoms. Another reason for frequent urination after holding urine is that the urine may be blocked in the bladder, so it is too long and leads to an infection in the urinary tract, so it causes the symptoms of frequent urination. It can be cured with the use of oral antibiotics.