My hubby has a hairy back and i sometimes trim it around his neck, but that is all really, i would of run a mile years ago if someone suggested i even date a man with a hairy back, but i love him, would not change him. It is possible to cause more problems when you remove hair from your back as you cant easily see it and can have ingrowning hairs or like my husband years ago ended up with a back that looked even worse with spots etc. so if you decide to get anthing done. Beware.