The hard bumps at the root of the ear and face connection are considered to be caused by folliculitis, boils, epidermal cysts and other diseases. 1. Folliculitis: Folliculitis is a disease that mainly involves hair follicles, the cause of which is related to the infection of hair follicles by pathogens, and can also be triggered by skin trauma and shaving. Folliculitis can occur in all parts of the body, such as the root of the ear and face connection, manifested as red papules, may have itching, tenderness and other symptoms. 2. Boil: Boil is an acute purulent inflammation of the hair follicle and its deep surrounding tissues, mainly caused by Staphylococcus aureus infection, preferably on the head and face, localized red painful nodules, about the size of a pea, rapidly developing into a hemispherical solid nodule. 3. Epidermoid cysts: Epidermoid cysts are a kind of cysts containing keratin in the dermis, which are common in the face and the upper part of the trunk, and the lesions are isolated intradermal or subcutaneous nodules with medium hardness. There are many reasons for the hard bumps at the base of the ear where the face connects, so it is recommended to consult a doctor for a clear diagnosis.