Blisters generally refers to blisters, male babies have a piece of urinary like blisters may be related to genital herpes, glans, eczema and so on. It is recommended to take the baby to the hospital urology department in time to clarify the cause of the disease. 1. Genital herpes: it is caused by herpes simplex virus infection and is contagious. The main manifestation is the appearance of blisters, vesicles or ulcers around the genitals, preferably in the foreskin, glans, coronary groove and other locations. 2. Glans: mainly manifested as redness and swelling of the foreskin, burning pain, aggravated by urination, purulent secretion from the opening of the foreskin, may also appear localized oozing, bleeding, and even blisters on the glans and other symptoms. 3. Eczema: It may be due to the infection caused by unclean hygiene, stuffy diapers and so on. It can lead to the baby’s genital eczema, skin lesions such as thin scabs, scales, blisters or rashes. If you find a piece of skin lesions like blisters at the urinary tract of your baby boy, it is recommended that you take your baby to the hospital in time for treatment.