The odor behind the ear is considered to be caused by poor local hygiene, bacterial infection, eczema behind the ear, sebaceous cysts and other factors.
1. Poor local hygiene: the skin behind the ear is relatively hidden, and it is not easy to clean it on a daily basis, which will lead to the accumulation of dirt and thus the odor, and the symptoms will disappear after cleaning.
2. Bacterial infection: when there is bacterial infection in the skin behind the ear, the bacterial metabolites mix with sweat, which will also cause a foul odor and may be accompanied by local redness.
3. Eczema behind the ear: if there is eczema behind the ear, it can be seen that the skin behind the ear has pimples and papules on the red spot, accompanied by intense itching, and after secondary infection, it can form pustules, pus crusts, enlarged lymph nodes, and after touching it, it can also have a foul odor.
4. Sebaceous cysts: the sebaceous glands behind the ears secrete exuberantly, which can easily lead to sebaceous cysts, resulting in cysts behind the ears of the patient, the contents of the cysts are mostly grayish-white curd-like, accompanied by a foul odor.
In addition, there are other reasons that can cause odor behind the ear, if accompanied by other discomforts, should consult the doctor in time, after clarifying the cause of the disease, receive treatment as soon as possible.