In most cases, hyperpigmentation of the buttocks is not a cause ... to the trapping of moisture and heat in the folds. Diaper dermatitis, also known as diaper rash, is a common skin condition ...

Heat rash, also known as prickly heat or sweat rash, is a common name for a skin condition called miliaria. This is a rash ...

Heat rash — also known as prickly heat, summer rash, or wildfire rash — occurs when the sweat gland ducts become blocked with sweat. Cooling or gently patting the rash may provide some relief.

Sweat is unable to get through the pores of the skin, which becomes irritated and causes a rash to develop. There are different severities of heat rash. The mildest and most common types look like ...