Seborrhoea Oleasa

This variety is characterized by the excessive formation of a thin, oily, sebaceous secretion, which flows in abnormal quantity from the orifices of the glands and covers the affected parts with a shiny and greasy coating, plainly visible to the eye, and on this account annoying to the patient. The usual seat of the trouble is the forehead, cheeks, and nose, and especially the latter. If this organ be taken between the fingers and sequeezed, the fluid may sometimes be seen to exude like little droplets of sweat. The affection is perhaps more frequent in youth, and often lasts for several years, and appears to be connected with puboric changes. If the secretion be not wiped off, it may lose its watery parts by evaporation and leave thin scales, consisting of epidermic cells mingled with oil-globules, and more or less dirt and dust from the atmosphere.