(HealthDay News) -- Baby teeth usually begin to appear between 5 months and 7 months of age. Infants may continue to get baby teeth until they are about 2 1/2 years old.

The Lucile Packard Children's Hospital offers a list of common symptoms of teething, and some warning signs that something may be wrong.

Normal signs:

• Additional drooling.
• Frequent chewing or sucking on the fist or fingers.
• Swelling or puffiness of the gums.
• Being unusually fussy.

Unusual symptoms:

• While some discomfort is normal, teething shouldn't cause your baby to have a high fever.
• Teething also shouldn't cause cold-like symptoms or diarrhea.