My son is having holes in his teeth others are rotten.im scared 2 take them out and he never complain about any pain.please advise me

Take him to the dentist. He has cavitys that have not been treated and rotted his teeth. Why have you not taken him?

And as noted, what has his several previous dental exams shown, Have you made an appointment for him to see his dentist who has been doing his check ups