Is it normal for a 4 month old to have a 100.9 fever while teething? my 4 month old baby just got her first 2 teeth in about a week ago. but today she has been acting really irritable and checked her rectal temperature and it was 100.9. could this be a ca

See her pediatrician: Normally, teeth eruption don't cause fever. A low grade fever can be detected sometimes during the eruption, not when the teeth had already erupted.

Possibly: It is normal for some babies to have a loo grade fever while actively teething. I would not expect it to develop a week later. She might have a mild cold. Keep her well hydrated and if other cold symptoms develop or fever worsens have your pediatrician evaluate her just to be safe.

A little high: 100.9 is a little high. May be teething, but more probably a cold. Ck w pediatrician. And see a pediatric dentist no later than 1st b'day. 2 or 3 is late. You need to talk to pedodontist about care of baby teeth, diet, hygiene, growth and development of teeth and jaws, Fluoride (remember, permanent teeth are already forming), and so many other things. And your child & the dr can bond.