Diaper Rash | Symptoms

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What does diaper rash look like?

Diaper rash usually causes mild redness and scaling where the diaper touches your baby's skin. In bad cases, the rash can cause pimples, blisters and other sores on your baby’s buttocks, thighs or genital area. If the rash gets infected, it may become bright red and the skin may get swollen. Small red patches or spots may spread beyond the main part of the rash, even outside the diaper area.

Call your doctor if:

  • The diaper rash occurs in the first 6 weeks of life
  • Pimples and small ulcers form
  • Your baby has a fever
  • Your baby loses weight or isn't eating as well as usual
  • Large bumps or nodules appear
  • The rash spreads to other areas, such as the arms, face or scalp
  • The rash doesn't get better after trying the tips on treating diaper rash for 1 week

Written by familydoctor.org editorial staff

Reviewed/Updated: 07/13
Created: 01/96

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