Itching in the ear hole may be caused by foreign body irritation of the outer ear, otitis media, allergic reaction and so on. 1. Foreign body irritation of the outer ear: a large amount of cerumen in the outer ear canal and the accumulation of dust, hair and other substances from the outside world stimulate the skin of the outer ear canal, so it will itch in the ear hole. 2. otitis media: bacteria, viruses and other microorganisms infect the middle ear through the Eustachian tube, external ear canal, blood and other pathways, inducing acute inflammatory reaction in the middle ear, with a large amount of inflammatory substances oozing out, stimulating the local tissues and leading to itchy ear holes. 3. Allergic reaction: the skin of the external ear canal is exposed to seafood, pollen, dander and other types of allergens, inducing local skin allergic reaction, congestion, edema, itching, rash and other changes. Itchy earholes may also be caused by fungal infections, eczema, etc. It is recommended to consult a doctor for a clear diagnosis and targeted treatment.