This chapter discusses diseases of external ear, where congenital conditions occur because of genetic defect, from a virus or toxic effect of drugs during pregnancy. Preauricular sinuses are blind tracks in front of ear lined by squamous epithelium and occur due to incomplete fusion of tubercles during development of external ear. Ceruminous glands produce watery secretions, while sebaceous glands produce fatty secretions. Collaural fistula is an anomaly of first branchial cleft. Furunculosis is a staphylococcal infection of hair follicles which are present in cartilaginous part of the external auditory meatus. Bullous myringitis haemorrhagica is a viral infection seen during influenza epidemics and is characterised by severe earache with a few constitutional symptoms. Otomycosis is a fungal infection of external auditory canal usually caused by Aspergillus fumigates. Exostosis occur in bony meatus and are usually multiple, while osteomas are single and occur at the junction of bony and cartilaginous meatus.