Small white bumps can appear on your lower, upper or inner lip, but you can also. Little white bumps on lips may also be caused by human papillomavirus .
Some appear inside the mouth – on the gums, tongue, lips, cheeks or palate. leukoplakia (a thick white or gray patch) and candidiasis or thrush (a fungal. agents may provide temporary relief for the discomfort but do little to speed healing.