How do you know if your wisdom teeth need know be removed from your mouth?

Pain?: If your wisdom teeth cause pain, then removing them should be done quickly. If they are affecting your bite or the alignment of your teeth then they should be removed sooner than later. For the best, most informed answer in your case, see your dentist and maybe an oral surgeon.

See your dentist: A clinical examination with the appropriate x-ray(s) that allow full visualization of your upper and lower jaws by your dentist should be performed to determine if you have wisdom teeth that are indicated for removal.