<s>[INST] Hi i have bumps on my hands and on my penis but im not sure what they might be... Ive had the bumps on my penis ever since i was able to have a hard on... And the bumps on my hand recently developed over the years.. My grandpa has the same problem with his hand [/INST] Hello, Welcome to Chat Doctor. The bumps on your penis (with the limited description) could be something called as pearly penile pa pules. They are harmless and can be left alone. However, with the limited description you have provided, I will not be able to comment on the bumps on your hands. Please describe their number, color, consistency, exact location on your hands(fingers/ back of hands/ palms/ tips, etc.) to give a possible diagnosis. </s>