How to reduce my body hair growth?

Why do you ask?: If you're male, many women like a hairy guy and most other men are at least a little bit jealous. Even if you prefer smooth, you can shave for now (or get "manscaped") and wait until you're in a stable marriage and let her decide whether to opt for electrolysis / laser. If you're a woman, your physician can advise whether there's a hormonal issue and about treatment if you desire it.