Ear itching is due to the ear skin sensory nerve endings by a light adverse stimulation, may be insect bites and other external factors, may also be caused by otitis externa, ear eczema, fungal infection of the external auditory canal and other ear diseases or systemic diseases.
1. External factors: Physiological factors such as insect bites, entry of foreign objects into the ear, frostbite in the ear or excessively dry skin may cause itchy ears.
2. Ear diseases: such as otitis externa, ear eczema, fungal infection of the external auditory canal, pruritus of the external auditory canal and so on, these ear lesions may cause ear itching.
3. Systemic diseases: such as bile duct obstruction, diabetes mellitus, renal insufficiency and other diseases may also cause itching of the external auditory canal.
Itchy ears may also be caused by other reasons, if accompanied by pain in the ear itching is recommended to consult a doctor in a timely manner, to clarify the cause of the disease, the cause of treatment.