Pimples in the cartilage groove of the ear are mostly considered to be external auditory canal boils caused by infection or sebaceous cysts caused by sebaceous gland obstruction, which do not behave exactly the same and have differences in treatment methods. It is a hard nodule shaped like a pimple, accompanied by local redness, swelling and pain. If the abscess is large, it can be incised and drained and antibiotics can be applied in time to prevent infection. 2. Sebaceous cyst: It is mainly a retention cyst formed by the obstruction of the sebaceous excretory duct and the expansion of the contents, with white curd-like sebaceous secretion inside the cyst. The treatment is mainly based on surgical excision under local anesthesia, with a good prognosis, and the use of antibacterial drugs if the infection is complicated. Usually, if this pimple is accompanied by redness and itching, it is usually due to a boil in the external ear canal, which is related to our failure to clean the ear properly in our daily life or due to frequent scratching of the ear, and these bad habits should be improved after receiving treatment.