Does Masturbation Make it Shrink?

When it's very very hard it's 6'0 inches, if that info helps answer the question, but does masturbation cause shrinking or growth stunts? I want a straight mature answer. I usually do it every couple days if that matters too.

Masturbation does not affect the growth (or shrinkage) or body parts. What you're doing is perfectly healthy. Just make sure you're being sanitary and it doesn't keep you from doing any of your regular daily activities. As long as you're able to do all the things you need to do, you're fine. Enjoy. :-)