Yes, exercise can potentially cause knee pain or worsen existing knee pain if not done with proper form or if the individual is overexerting themselves. It's important to listen to your body and make sure you are practicing exercises that are suitable for your fitness level and any existing conditions you may have. Incorporating low-impact exercises like yoga can be beneficial for strengthening the muscles around the knee joint, improving flexibility, and promoting overall joint health. Always consult with a healthcare provider or a qualified yoga instructor to ensure you are practicing in a way that supports your knee health.