Will my self injuries get infected?!

The skin's there to protect you, so anytime you break it, you make yourself vulnerable. Keep an eye on it, keep it clean, and keep it bandaged. And you should probably think about a tetanus booster if you haven't had one in the last ten years. One of these days you're going to look back at all the ugly scars you've accumulated and curse yourself for not managing to find a better way to relieve your stresses and inner torments. I do.

if you have it use hydrogen peroxide, it will clean the cut of any bacteria. make sure you keep the cuts clean and covered.