Many guys believe that by shaving their heads, hair will grow back thicker and fuller. This is a total myth. There’s no scientific or medical evidence to support this claim. The most common cause of early hair loss is adrogenetic alopecia, meaning baldness. Both men and women can suffer from hair loss.
Sometimes after you shave your head, the new hair seems to be thicker. That’s because the new hair is healthier and undamaged by chemicals in the air and shampoos. But that doesn’t mean shaving makes your hair thicker and healthier.