Thin urine may be caused by UTI, prostate hyperplasia, urethral stricture, prostatitis, etc. The causative factors are different, and the treatments are also different, including medication and surgery. 1. Urethritis: For the thin urine stream caused by urethritis, the main treatment is to use antibacterial drugs, such as amoxicillin, ciprofloxacin, etc., to eliminate the infectious factors. 2. Prostatic hyperplasia: When there is prostatic hyperplasia, it can also cause thin urine flow, which can be treated with tamsulosin, finasteride and other drugs to make the gland shrink and reduce urinary discomfort, and when it is serious, it is necessary to consider transurethral resection of prostate. 3. Urethral stenosis: For urethral stenosis caused by thinning of the urinary line, surgical treatment can be considered after diagnosis, such as urethral dilatation surgery. 4. Prostatitis: For prostatitis, when there is bacterial infection, levofloxacin, ciprofloxacin and other drugs can be applied, for non-bacterial prostatitis is mainly symptomatic treatment, such as ibuprofen, tamsulosin and so on. During the treatment period, you should listen to your doctor’s advice, use medication safely and reasonably, and don’t use medication on your own.