Pimples or a pimple-like rash can develop on any part of the body, including on the legs and thighs. Potential causes include folliculitis, keratosis pilaris, and hives. Pimples often appear as one or ...

Medically reviewed by Susan Bard, MD Hives are red, raised bumps that stem from allergies, infections, or stress.Flea and chigger bites look like small, red, pimple-like bumps and feel very ...