Teething is when the primary teeth break through the gums. Teething usually starts around 6 months of age, but any time between 3 to 12 months is normal. By the age of 3, a child should have 20 primary teeth.
The pressure in the gums can be painful, mainly due to swelling. Babies may bite toys or their fingers to relieve the pain. In some cases, the teething may be accompanied by drooling and lack of appetite. While some babies won’t feel anything when teething, some may be more irritable and even get a fever for 1-2 days. Every tooth takes about 3 to 5 days to break through the gums.