When men urinate with bubbles, then the possible causes: First, urine concentration, long time without urination or the presence of chronic urinary retention, less water, or a long time to hold urine, sweating more and other factors lead to the concentration of urine, there will be an increase in the phenomenon of bubbles when urinating, mostly larger bubbles, and can quickly dissipate, without any urinary tract irritation symptoms, such as frequent urination, urinary urgency, painful urination, and It is accompanied by yellowish urine. Secondly, if there is more protein in the urine, the urine is slightly cloudy, accompanied by urination is fine foam, lasting and does not dissipate, need to carry out routine urine test or quantitative urine protein test to confirm the diagnosis. Third, if there is a urinary tract infection, there can be increased foam in the urine, because the urine is more cloudy after infection, there can be more foam because of increased solute concentration and water shock, which can be accompanied by urinary frequency, urinary urgency, painful urination and other urinary tract irritation symptoms.