The female external genitalia area (also called the vulval area) is particularly susceptible to skin disorders since this area is warm, sweaty, and moist. The wearing of undergarments in this type of condition can predispose the area to constant irritations and possible infections. Many types of irritants can aggravate the skin such as vaginal and menstrual discharge, use of sanitary pads or panty liner, synthetic undergarments, and vaginal lubricants. Chemicals used in the manufacturing of the undergarments, sanitary pads, and panty liners may act as irritants and sensitizing allergens. In postmenopausal women, lack of oestrogen can cause atrophy of the skin, with gradual loss of subcutaneous fat and skin elasticity. The labia fold (external skin fold at the side) will also shrink in size. This thinning of the skin will predispose to irritation and may lead to various skin disorders.