Pustular pimples here refer to acne. Pustular pimples on the face keep enlarging, which may be caused by squeezing the pimples out artificially, or it may be caused by the patient’s low immune function or the formation of keloid scars. You need to go to the hospital in time to get a clear diagnosis and then use the medication according to the doctor’s instructions. 1. Pustular pimples on the face are caused by bacterial infection of the hair follicles. The bacteria can easily enter the capillaries and infect the nearby skin tissues after the pimple is squeezed by human beings, leading to the enlargement of the pustule, and in serious cases, the bacteria can spread all over the body to form bacteremia or cause intracranial infections. 2. Some patients with low immune function, the body’s immune system can not inhibit the proliferation of bacteria, easy to cause pustules pimples become larger. Mostly seen in long-term bedridden, diabetic patients or AIDS patients. 3. Keloid is an abnormal connective tissue proliferation disease, most keloid patients have hereditary keloid. Some patients have heavy inflammation that destroys the local skin tissues and is prone to keloid scars. There may be other reasons for the appearance of the above situation, it is recommended to go to the hospital in time, identify the causes and treat the symptoms.