Wisdom teeth grow in behind your back teeth but not everyone has space for them. They can also erupt in ways that cause other problems for your teeth or gums.
For example, some people’s mouths simply don’t have enough room for these teeth. For others, they will grow in at an angle that pushes other teeth out of the way, causing crowding, overlapping and pain.
In some cases, you may not need any teeth out at all but, in others, anywhere from one to all four will need to be removed to maintain good oral health.
It could be your dentist who first mentions that the teeth will need to be extracted after spotting a future issue during an examination or an x-ray. However, your first indication may be pain in the back of your mouth, as some teeth will become infected and impacted as they start to erupt.