Itchy ears and water with a foul odor may be due to eczema of the ear canal, fungal infections of the external ear canal, otitis externa and other causes. 1. Eczema of the ear canal: Eczema of the ear canal is a perverted inflammatory lesion of the external ear canal, mainly due to repeated pulling out the ear or digging the ear leads to, there will be itching in the external auditory canal, burning discomfort, flow of mucus secretion symptoms, sometimes the secretion will have a foul odor. 2. Fungal infection of the external auditory canal: if the patient’s external auditory canal water, accumulation of secretions or long-term use of antibiotic solution and other conditions, easy to cause fungal infection. The symptoms of discomfort and itchiness in the external auditory canal, accompanied by fungal stimulation of secretion, and there may be a foul odor. 3. Otitis externa: If the patient’s external ear canal skin is attacked by bacteria, there is inflammation, there will also be symptoms of itchy ears and water with a foul odor. The symptoms of itchy ears and foul-smelling water, it is recommended to consult a doctor in a timely manner to identify the cause and give targeted treatment.