If the urination is slow, then the possible causes: 1. If it is an adult male, then it is most often prostatic hyperplasia. When benign proliferative lesions occur in the prostate, the urethral duct lumen is compressed and thinned, when the urethral resistance increases, the patient will experience a combination of symptoms such as difficulty in urination, prolonged urination time, prolonged urine waiting time, and weakness in urination. It is recommended to have an ultrasound examination of the prostate gland and if the presence of prostatic hyperplasia is confirmed, medication or surgery will be required. 2. Urethral stricture, when trauma, inflammation, infection, etc. can occur with urethral stricture lesions. This can be followed by symptoms of straining to urinate and weakness in urination. Acute phase can be seen in acute severe infection, chronic phase can be seen in post-traumatic scar formation, etc. Urethroscopy is recommended. If stricture exists, regular dilatation treatment is required.3. If combined with neurogenic diseases or type 2 diabetes, etc., weak contraction of the bladder forcing muscles can occur, and a combination of symptoms such as weakness and slow urination can occur. Common diseases such as post cerebral hemorrhage phase, post cerebral infarction phase, poor glycemic control in type 2 diabetes, impaired peripheral neuropathy, etc., can present with weak bladder contraction, which leads to slower and weaker urination.