Ear warehouse that is congenital preauricular fistula, inside the extrusion of white material, may be normal, belong to the wall of the tube cavity secretion; may also be infected with the formation of abscess. Pre-auricular fistula belongs to the common congenital ear deformity, can occur in the ear unilateral or bilateral, in the outer ear skin openings appear blind end of the tube, fistula is often narrow, the depth of its lumen wall with hair follicles, sebaceous glands and sweat glands of the complex flat epithelium, can be secretion of white mucus and caseous secretion, due to extrusion can be discharged out of the fistula. In the fistula secondary infection, can cause redness, swelling and pain, the formation of abscess, abscess break into pus fistula, white pus outflow. The fistula in front of the ear does not need to be treated when there is no infection, if there is a history of infection, timely medical treatment, after controlling the infection, surgical treatment.