Small white bumps on the face may be caused by acne, sebaceous ectasia, filiform warts and other diseases. 1. Acne: Acne is mainly caused by androgen levels, increased sebaceous gland secretion, clogged pores, excessive proliferation of Propionibacterium acnes, inflammation and other factors. Patients may have white secretion, pimples, nodules, cysts and other symptoms, which are manifested as small white bumps on the face. 2. Sebaceous gland ectasia: its etiology is not yet clear, may be hormone levels, local stimulation, trauma, smoking and other factors. Patients may have white pimples on their lips, manifested as small white bumps on their face. 3. filiform warts: filiform warts are caused by human papilloma virus infection, patients can appear in the skin wart-like cumbersome organisms, patients are not conscious of the symptoms, manifested in the face of the growth of white small bumps. There are a lot of reasons for the growth of white bumps on the face, it is recommended that the patient to go to the regular hospital, timely identification of the cause of the disease. Once diagnosed, you can take relevant treatment measures under the guidance of the doctor.