Less common white bump causes worth noting are: Flat warts: “These small, skin-colored bumps are caused by specific strains ...

Swelling in the lips or tongue. Trouble breathing ... In some cases, people may develop a small, red, itchy bump after a tick ...

According to the American Academy of Dermatology (AAD), people with chronic kidney disease may have: small, dome-shaped, very itchy bumps small bumps that have joined to form raised, rough patches ...