Does waxing chest/stomach/back cause any serious health issues?i was told that pulling out hair may cause cancer? i have a lot or stomach/chest hair

No: waxing and other means of hair removal do not cause long-term medical problems that we know of. There is no evidence of an increased risk of cancer from pulling out hair. Do whatever feels best for you from a grooming point of view and don't worry about it, good luck

You're fine: What you do with your body hair is up to you and any significant other. Some women prefer smooth, some women prefer hairy, and most men will be at least a little bit jealous. There's not the slightest evidence the "manscaping" yourself presents any cancer risk. People make up phony "cancer risks" to appear to be your friends; they're not. Stay fit, avoid tobacco, live a healthy life.