Itchy ears may be caused by mosquito bites, fungal otitis externa, eczema of the outer ear and so on. 1. Mosquito bites: itchy ears may be caused by mosquito bites, mosquito bites will release saliva and toxins in the ear, resulting in the body’s immune response, thus manifesting itself as itchy ears. 2. Fungal otitis externa: itchy ears may be caused by fungal otitis externa, if you often swim or use unclean utensils to pull out the ears, will make the ear canal moist and unclean, thus inducing infection, causing fungal otitis externa. The performance of itchy ears, ear stuffiness, accompanied by swelling and pain in the external auditory canal. 3. Eczema of the outer ear: itchy ears can also be caused by eczema of the outer ear, usually related to allergies, ear local drug irritation factors. Patients in addition to itchy ears, will be accompanied by burning sensation, redness and swelling, scattered small blisters, digging the ear after the discharge of yellow watery secretion, coagulation after the formation of yellow scabs. Itchy ears, it is recommended to go to the hospital, under the guidance of the doctor reasonable treatment.