The feeling of not being able to urinate is considered to be caused by bladder stones, prostate hyperplasia and other diseases. 1. Bladder stones: bladder stones are generally kidney, ureteral stones into the bladder caused by urethral stenosis, prostate hyperplasia, obesity, etc. are bladder stone triggers. Most patients do not have symptoms, if the stone impedes the urine discharge when the symptoms are more obvious, there will be pain in urination, urination difficulties and other symptoms. 2. Prostatic hyperplasia: Prostatic hyperplasia is typically characterized by frequent urination, urinary urgency, incomplete urination and difficulty in urination, etc. The cause of the disease has not been clearly defined, and may be related to the role of sex hormones and their receptors, cell proliferation and apoptosis imbalance. There may be other reasons for the feeling of not being able to urinate, it is recommended to actively seek medical advice and treatment under the guidance of a professional physician.