I get small black pimple like bumps on my penis if i try to pick them off they bleed and leave a scar. what do you recommend?

Your description: Is clear, but its implication requires an expert to look at the lesions. 'black' + 'bleeding' in any skin lesion warrants inspection by a dermatologist. Infectious, cancerous, and benign moles can all be the cause that i can't tell from here, but they can. There is a group in your city with a 'pigmented nevus clinic' ...Choose a dermatologist or go there.