Hair absorbs the water making it soft and much less likely to stick well to the wax.
Some physicians do not recommend hair waxing for persons suffering diabetes or who have varicose veins or poor circulation because they're more problems infection. https://cypwbrgnysn6a4gvz6seandhrrpukjnjh7was6ucrnp24ysffrna.cdn.ampproject.org/c/Crebig.com%2Fboard%2Fbbs%2Fboard.php%3Fbo_table%3Dfree%26wr_id%3D640799