Most of the small bumps on the tattooed place are caused by folliculitis, allergy, proliferative scarring and other reasons. 1. It may be due to the weather is too hot, the body sweats too much, sweat through the tattoo wound bacterial infection, thus caused by the folliculitis. The phenomenon of small bumps on the tattooed place can occur. 2. Allergy: it may also be due to the patient’s allergy to the tattoo with the dye ingredients, or patients belong to the allergic body, can occur allergic reactions, thus appearing tattoo place goose bumps phenomenon. May also be accompanied by itching, redness and swelling and other symptoms. 3. proliferative scar: mainly for the human body trauma repair of the end result, is an important part of the human body self-defense system. Usually after the healing of trauma will be accompanied by varying degrees of scar formation, some patients can appear proliferative scar, thus appearing tattooed place of small bumps of symptoms. In addition, it is recommended that patients with tattooed bumps go to the hospital in a timely manner and follow the doctor’s instructions for treatment to avoid delaying the condition.