<human>: I have a strange pimple-like bump on my penis shaft. It just kind of appeared one day. I take showers daily so I m pretty clean. The top of the bump is white (much like a pimple) however it s surrounded by redness and it kinda feels like a rock underneath the skin. I ve tried my acne medication there before a few times and it doesn t seem to help a whole lot. I got this about a week ago or so. When I squeeze or apply pressure the pus comes out sometimes followed by blood. I did also masturbate usually once every single day but I ve stopped since this came up. Anything I could do besides seeing a doctor? Any thoughts as to what it actually is?
<bot>: Hi. Thanks for your query and an elucidated history. The bump on the penile shaft as you have explained is usually due to a small boil. This is a retention cyst of some nature like a sebaceous cyst or a Desmond or so. Since you have tried to pop it you have ruptured the skin barriers but since the contents are inside, it is still feeling like a rock under the skin. You have already tried some medicines. You need to take an antibiotic and anti-inflammatory medicine like Ibuprofen. If this does not help, consult a Doctor to get a proper diagnosis and treatment.