I recently discovered a small pimple like bump on the lower shaft of my penis and I'm wondering what it could be I have kinda squezd it and I have felt a hard like ball underneath the skin I am worried this could be an sti I am only 15 and am a virgin can someone please help me figure out what this is and what I should do
although I think it might be the cyst thing but not sure
also I have applied polysporin on it to prevent infection