Everyone should shave their head at least once. You can see if your head shape matches your family. You can see any past injuries to your skull that you might have encountered as a baby, too. If you shave your skull and see old, severe injuries, that you don’t remember having had, or were never in your medical file, they might have occurred when you were an infant. I had a dad that used to punch things when he was mad. He even punched me several times when I was a young child. I shaved my head and I can see indents that look like knuckle marks on my skull, that must have happened when my skull was still kind of soft and plates were forming together. I took him out for a late lunch weeks ago, and he had the nerve to ask me “where did you get those marks on your head?” I looked him right in the eye and said, “it must have been from childhood.” He later had what doctors thought was a stroke, and I was the only person home to take him to the hospital. He said he was “having trouble remembering things.” I think he started remembering what he did to me as a baby, and is now faking dementia. I get to look at my skull every day in the mirror, between making him dinner, doing his laundry, and cleaning his house for him.