Greasy and moist ears may be caused by oily cerumen, otitis externa, purulent otitis media and so on. 1. Oily cerumen: The exuberant secretion of glands in the ear leads to the presence of greasy secretion in the ear for a long period of time, which is called oily cerumen, resulting in greasy and moist ears. Regular cleaning of the ears is needed to prevent the accumulation of cerumen for a long time and blockage affecting hearing. 2. Otitis externa: Infection of the skin of the external ear canal stimulates yellowish or purulent secretions to flow out of the ear canal, resulting in greasy and moist ears, accompanied by ear itching or pain. 3. Suppurative otitis media: Inflammation of the middle ear caused by water and moisture in the ear canal, upper respiratory tract infection, etc. The tympanic membrane is perforated and the secretion flows out, resulting in a large amount of mucopurulent secretion and greasy and moist ears. If you have oily and wet ears, we suggest you to consult the hospital for diagnosis and treatment.