Diaper rash is a common problem among babies, but it can also be a sign of a more serious underlying issue. If left untreated, it can lead to infection and discomfort for the baby. Some potential causes of diaper rash include allergies, yeast infections, and bacterial infections. It's important to identify the root cause of the rash in order to effectively treat it. Parents should consult with a healthcare provider if they notice persistent or worsening diaper rash. Preventative measures such as frequent diaper changes and using gentle, fragrance-free products can also help prevent diaper rash from occurring.