Why doesn't baby want to eat?

There are several common reasons babies refuse to eat. Most commonly, your baby is sick — teething, upper respiratory infection, ear infection, or sore throat can make sucking or swallowing painful. Beyond that, during growth spurts, appetite can temporarily dip; especially around 6-8 months when solids start, a baby may resist new tastes and textures. Extreme tiredness, too much stimulation in the environment (loud noise, crowds, TV), or feeding too frequently can also cause resistance. If your baby skips two feedings in a row, check for fever, fussiness, vomiting, or diarrhea. If none of those are present, it's usually temporary. But if refusal lasts longer than 24 hours, there's weight loss, or urine output drops, see your pediatrician right away.