Serious Knee Injury Symptoms You Shouldn't Ignore... If you're suffering from knee injury symptoms, you're in the right place. In this article, we'll disclose everything you need to know about knee injury symptoms you shouldn't ignore. We'll even disclose at the end how knee physical therapy can help you prevent a surgery and get back on your feet. An estimated 6.6 million knee injuries were presented to emergence departments of U.S. from 1999 to 2008. – Research You experience swelling and pain while twisting. You smashed into another player and received bruising in the knee, or you have been suffering from knee pain for more than four weeks, and you see no [...]