Male erection with discharge is generally a normal physiological phenomenon, but if accompanied by urinary urgency, painful urination and other symptoms, may be prostatitis or urethritis, need to be treated with medication and so on. After a normal erection, a small amount of secretion from the urethral bulbous glands and urethral glands, as well as some prostate fluid, will flow out of the urethra. When men are sexually aroused there is urethral bulbourethral fluid discharged, the main function is to lubricate the urethra in order to facilitate male ejaculation, and has the role of stimulating sperm activity. This is a normal physiological phenomenon, no need to worry. If there is purulent discharge after erection and accompanied by urinary urgency, urinary pain and other symptoms, may be suffering from prostatitis or urethritis, you can take levofloxacin hydrochloride and other quinolone antibiotics, as well as tamsulosin, selodosin and other pain relieving drugs for treatment. All the above drugs need to be aware of the side effects and adverse reactions of the drugs, please use the above drugs under the guidance of your doctor. There are many reasons for men to have discharge on erection, it is recommended to go to the urology department of the hospital for examination and treatment as soon as possible.