Inability to urinate, i.e. difficulty in urination, may be related to prostate lesions such as prostate hyperplasia, bladder or urethra stones, nerve injury and other causes. 1. Prostate lesions: belonging to male diseases, such as prostate hyperplasia, fibrosis or tumors can cause obstruction, resulting in difficulty urinating. 2. Stones: when suffering from bladder stones, urethral stones and other foreign objects can also cause obstruction, leading to urinary difficulties. 3. Nerve damage: when suffering from craniocerebral or spinal cord injury, etc. can lead to nerve damage, resulting in the urinary muscles can not be normal contraction, resulting in urination difficulties. In addition, if the urinary tract neighboring organs have uterine fibroids and other lesions, it may also compress the bladder, resulting in obstruction and urination difficulties. Difficulty in urination may also be caused by other factors, and patients are advised to go to regular hospitals for timely consultation and treatment to strive for early recovery.