Earlobe pimples are mainly seen in folliculitis, insect bite dermatitis, cysts, and need to be analyzed according to the symptoms. 1. Folliculitis: an acute bacterial infection that occurs around the hair follicle, usually manifested as a small papule with a pus head, and there can be redness, swelling and hot pain. Poor skin hygiene and low immunity are the main reasons for the recurrence of folliculitis. 2. Insect bite dermatitis: can be caused by mites, mosquitoes, midges, bedbugs, fleas, bees, ticks and other insect bites or poisonous juice stimulation. Its common feature is that the lesions can be seen as pinpoint bite marks, manifested as red papules, conscious itching, and the severity is related to the type and number of insects and the sensitivity of the patient. 3. Cysts: can be divided into two categories, true cysts such as epidermoid cysts, etc., the wall of the capsule lined with epithelium; pseudocysts such as traumatic cystic hematoma, cystic chondritis, etc., for the tissue interstitial fluid, no lining epithelium. Clinically, true cysts are more common. Earlobe acne may also have other reasons, the specific circumstances need to ask the doctor after an interview and with the actual situation for analysis.