Heat Rash | Causes & Risk Factors


What causes heat rash?

Heat rash is most common in newborns and infants, but it can also affect adults. It is usually triggered by sweating too much, having a high body temperature, being overdressed or being in a very warm environment. Babies who are bundled in too much clothing and people who are not used to hot weather are most likely to get heat rash.

Written by familydoctor.org editorial staff

Reviewed/Updated: 04/14
Created: 07/09