Itchy ears are mostly seen in foreign bodies in the ear canal, otitis externa, and eczema of the external ear canal. 1. Foreign bodies in the ear canal: small insects or other physical and chemical substances entering the ear canal can stimulate the skin nerve endings, and itchy symptoms appear. 2. Otitis externa: it is an inflammation of the skin of the external auditory canal caused by various reasons, such as bacteria, fungi, etc. Among them, bacterial infections are more common, and most of the fungal infections are Aspergillus infections, which often lead to an increase in the secretion of the ear canal and are accompanied by symptoms such as itching and desquamation of the external auditory canal. 3. Eczema of the external auditory canal: the pathogenesis is still unclear, but may have a close relationship with the perverse reaction, may also be due to mental factors or infectious factors stimulation, often leading to intense itching of the external auditory canal, and there may be oozing of secretions, crusting and other phenomena. Itchy ears can also be caused by other reasons, if the symptoms persist for a long time, you should consult a doctor in time to clarify the cause of the disease, and then cooperate with the doctor to take treatment.