Decompression Sickness (DCS) is a scary, and fortunately an uncommon event, in recreational diving. Most divers will never experience or know someone that will ever have DCS. And, even though it is rare, every diver should learn about it. A great way to start is by talking with your Academy of Scuba dive professional. As your guide to the Scuba world, your dive professional can help educate you on the number of factors that can influence the likelihood of DCS, and great ways to avoid it.