Seborrhoea is the increased secretion of sebum by the sebaceous glands onto the surface of the skin, most pronounced in areas with abundant sebaceous glands. The skin is oily, shiny, with dilated sebaceous gland mouths filled with sebaceous-oily masses. The largest number of sebaceous glands is found in the hairy scalp and also in the face, so seborrhoea is most common in these areas on the body. Seborrhoea of the scalp is often accompanied by dandruff, while facial seborrhoea is often accompanied by acne. In order to eliminate seborrhoea, the skin must be properly cared for. However, if skin care measures do not work, a visit to a dermatologist or endocrinologist is necessary.