A two and a half year old boy with a pimple on his penis may be caused by acute injury, sebaceous cysts, folliculitis and other factors.
1. Acute injury: for example, excessive pressure, foreign body stimulation, etc., resulting in local damage to the penis, so that the local swelling, similar to a pimple, accompanied by pain and redness and other symptoms.
2. Sebaceous cysts: not pay attention to the penile area cleaning, may lead to the local skin of the penis sebaceous gland ducts blocked, the formation of sebaceous cysts, can make the penis localized a pimple, cysts continue to increase in size, may compress the surrounding tissues, causing pain symptoms.
3. Folliculitis: it may be related to poor hygiene, which can lead to the presence of localized penile follicles infection, induced folliculitis, which can cause purulent pimples, accompanied by pain, itching and other symptoms.
The above symptoms may also be caused by other factors, parents are advised to take their children to regular hospitals for medical examination, to identify the specific causes and timely treatment.