Bumps on the scalp can be caused by other skin disorders such as folliculitis, scalp acne, or dandruff. They could also show up due to an allergic reaction to a product or skincare routine.

Fordyce spots on the penis can often look like other skin conditions like Molluscum contagiosum, milium cysts, epidermoid ...

Some men have little bumps on their scrotum, and they're concerned. What is this? Could it be cancer? First of all, any time you want to know could something be cancer, you need to see a doctor.