I am 18 years old now and i still have 1 premolar milk tooth.it has a lot of cavities and also broke. do i need to remove it?

Most likely: Primary teeth usually do not last that long, and it sounds like yours is unrestorable.

See a dentist: You need to see a dentist for proper treatment. They may fill or remove your tooth.

Yes: If your primary premolar has a lot of decay there won't be much to restore. Leaving a primary tooth in position can lead to problems with your bite down the road since it is a different size than the permanent tooth that is supposed to replace it.

Primary tooth r: At your age the tooth should have been removed years ago. I presume there is no secondary tooth impacted below it. Your dentist can give you several options to replace it.

Definitely remove it: As an adult with a decayed baby tooth, often the tooth is lost between the ages of 20 and 35 and must be replaced with a dental implant. See your dentist for examination, x-ray and treatment.