A pimple on the inside of the lip is usually recommended to hang up the stomatology department, dental specialty hospitals can hang up the oral mucosa department. 1. The inner lip grows a pimple is usually caused by eating bite to the inner wall, or the oral human papillomavirus infection caused by the oral cavity, all belong to the stomatological diseases, so it is recommended that the patient choose the stomatological medical treatment. 2. When eating to bite the inner wall caused by trauma resulting in the formation of blood blisters patients, usually can be self-absorbed, it is recommended that patients avoid spicy and stimulating food, to maintain oral cleanliness; human papilloma virus infection, there may be invasion of the oral mucosa, resulting in the proliferation of local tissue lesions, the formation of papilloma, can be used under the guidance of a doctor, methotrexate tablets, mercaptopurine tablets, and other medications to carry out the treatment. It is recommended that patients with bumps on their lips should go to the hospital in time for examination and reasonable treatment under the guidance of the doctor, and the use of medication should be in accordance with the doctor’s instructions.