There are many reasons why infants have fever such as teething, measles, dengue fever, etc. Parents need to understand the reasons that can cause fever in children to have appropriate treatment.

Teething is the first time a tooth breaks through a baby's gums. Teething usually starts around 4 to 7 months of age, with an average of 6 months. This can cause fever, drooling, irritability, poor feeding, diarrhea, or increased crying.