Prolonged contact with urine and stool can irritate sensitive baby's skin. Especially in babies, diarrhea can result in rash formation if defecation occurs. Sensitive and moist skin of babies is very sensitive to rubbing. Nappies and narrow garments that irritate the skin can trigger rash formation. Bebeğin skin; baby garments, detergents washed by clothes, softeners, or wipes made of cleaners. Some babies' skins may also be sensitive to baby lotions, powders and oils. A small infection in the skin of babies can soon spread to the surrounding area. Bacteria and fungi can settle between skin folds and start rash formation, especially in moist and hot areas. The content of feces changes when babies switch to solid food. This can increase the risk of rash formation. Differences in infant feeding are among the causes of rash formation. Apart from all these factors, it is accepted that the drugs used by babies, lack of zinc, not keeping their skin clean enough and the reflection of mother's differences in mother's feeding can lead to rash in babies.