Your beard is a battleground for bacteria.Between improper maintenance and thick, curly hair, it’s easy to wind up with a petri dish on your face. Here’s a clue into exactly what’s causing the trouble and how to fix it. The best way to prevent a dirty beard is to keep your hands to yourself. If you’re touching your beard because it’s itchy, prioritize skin care. Scratching and fiddling with your hair moves microbes from whatever you’ve been touching (including the toilet seat) to your face.