I am having problems with my legs. i have these bumps under the surface of the skin .please tell what it is.

Keratosis Pilaris: Keratosis pilaris is a skin condition that causes acne-like bumpy skin.(can look like goose bumps) this is caused from a build up of keratin, a natural protein in the skin. It's most commonly found on the upper-arms, but is also commonly found on the face, thighs/legs, back, chest, and buttocks. Keratosis pilaris isn't contagious and it passed on as a heredity trait.

Uncertain: This can't be diagnosed with the information that is available. A history, physical examination & other studies may be needed to determine cause/causes. Once accurately assessed a treatment plan can be developed.