My son has picked up some abuses from kids in his school and casually uses them in conversations. Ive tried scolding him and trying to make him understand its not right but he continues. My wife and me are worried, how do I break this habit?

i think scolding will have the opposite effect of what you want. try talking to your son. if he is very young, he will not know the meaning and you can tell him that these are not nice words and he should stop using them. if he is older and understands that these are abuses, talk to him directly and explain that such words are very disrespectful and should not be used.