Home › Forums › DISCUSSION FORUMS › NUTRITION AND METABOLISM › Little bumps on upper arms This topic is empty. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts October 9, 2009 at 8:08 pm #1379 wapf fanMember A couple of my 6-year old daughter’s friends have little bumps on the backs and sides of their upper arms. I thought Dr. M had said this was a vitamin deficiency but I don’t remember which one. D or A? Thanks for any input! August 30, 2010 at 5:39 am #3745 DrMariano2Participant Follicular keratosis – essentially blocked hair follicles that feel like grains of sand in the skin – may indicate a deficiency of Vitamin A. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In