Ive had a swollen lymph node beside my chin for about a year i dont know the cause but it hasnt gotten smaller or larger however i did just fully grow a wisdom tooth on that side, could it be related?

May be. You may feel the nodes every couple of weeks, if any of the lymph glands doubles in size, becomes painful, ulcerates, or other nodes become enlarged, or you develop fever, or lose weight, you should see a doctor. Wish you good health!

If it's near your chin nit's not related to a wisdom tooth. Swollen lymph node usually signifies an upstream infection. Please see your General Dentist, an Oral Surgeon, or an Oral Pathologist for an examination.