Shoulder lumps can result from harmless causes like lipomas (fatty tissue growths), cysts, muscle knots, or large pimples, though injuries, arthritis, and rarely, cancer can also cause them. Most ...
A bump on your scrotum can result from common issues like pimples, sebaceous cysts, spermatoceles, or varicoceles — most of which aren’t serious. Less common causes include genital herpes, testicular ...