Why do my upper arms get tiny red painless bumps that look like goosebumps?
1. Introduction Tiny, red, painless bumps on the upper arms that resemble goosebumps are the hallmark clinical presentation of keratosis pilaris. This benign genetic condition occurs when excess keratin protein builds up within the hair follicles, creating microscopic plugs that trap the hair and cause localized inflammation. Instead of exfoliating normally, the skin cells adhere … Read more