Bumps On The Back of Your Arms – Keratosis Pilaris

Keratosis pilaris is a common skin condition in which a protein in the skin called keratin forms hard plugs within hair follicles. It feels like weird hard bumps. It is very common on the back of the arms of many women.

Causes and Risk Factors

Keratosis pilaris is harmless and seems to be hereditary. If your mom has it its likely you do as well. It is more
common in people who have very dry skin, or who have atopic dermatitis or eczema. The condition is generally
worse in winter and often clears in the summer.


  • Small bumps that look like “goose bumps” on the back of the upper arms and thighs.
  • Bumps feel like very rough sandpaper.
  • Skin-colored bumps are the size of a grain of sand.
  • Slight pinkness may be seen around some bumps.
  • Bumps may appear on the face and be mistaken for acne.


Treatment may include:

Moisturizing lotions to soothe the skin and help it look better.

Skin creams that contain urea, lactic acid, glycolic acid, salicylic acid,  or vitamin D

Steroid creams to reduce redness but I recommend trying natural options.  Moisturizing and exfoliating. Exfoliate 2-3 times a week with a body glove or pad.  A natural sponge is best.

Improvement often takes months and the bumps are likely to come back.


Keratosis pilaris may fade slowly with age.

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7 Responses to Bumps On The Back of Your Arms – Keratosis Pilaris

  1. Derpy says:

    I iz a 12 year old with this!!!!! MUAHAHAHA!!!! Also i do not have it on my face, on my arms and legs… Guess I’m lucky for that, even though just a few months ago i had poison ivy on my face.

    • Derpy says:

      also i did not have eczema or anything, and none of my parents have it, or my siblings, just me.

  2. Jenny says:

    Breast milk works great too

  3. Takija says:

    what would be best to use for this skin condition?

    • dlai says:

      I would use olive oil or grape seed oil and lightly ex-foliate with a natural sponge or glove. It will take time to reduce the bumps but can be done with gently ex foliating and moisturising.

  4. Grisett Torres says:

    I have a 20month old daughter with these bumps on her arms and thighs. At her age what is the best lotion to use?

    • dlai says:

      If your child had eczema it is best to figure out what is causing it. Laundry detergent is the common problem. The baby friendly products I would recommend are http://www.dianelai.com, olive oil, grape seed oil and organic baby. I hope this was helpful.

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