Keratosis pilaris, often mistaken for pimples or follicultis , is a harmless skin condition that leads to the development of dry, rough patches and small bumps on the upper arms, thighs, cheeks, and buttocks. These bumps are not painful or itchy, resembling sandpaper in texture. They occur due to an accumulation of keratin, a tough protein that safeguards the skin against infections, which clogs the hair follicles.
Severe cases of keratosis pilaris tend to arise during seasonal transitions when the skin becomes dry due to low humidity levels. Fortunately, this condition typically fades away by the time a person reaches the age of 30.