Doctor's Notes on Teething
Teething refers to the eruption of teeth in the gums, commonly referring to babies acquiring their primary teeth. Teething is a normal process that usually occurs between 6 and 24 months of age. However, babies may get their first tooth and begin teething anywhere from 4 to 10 months of age. A relatively rare condition, "natal" teeth, means there is the presence of a tooth at birth. This happens in about one out of every 2,000-3,000 live births.
The symptoms of teething, when present, usually begin a few days before eruption of a tooth. Symptoms and signs of teething include gum and jaw discomfort, a slightly swollen or red area at the site of the erupting tooth, and sometimes a blister over the involved area. Associated symptoms can include fussiness, increased drooling, mild rash around the mouth, putting hands in the mouth, and refusal of food.
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.