While using a prostate massager is generally considered safe, it's essential to follow proper usage guidelines and listen to your body's signals. Overzealous or improper use of a prostate massager can cause discomfort or injury. To minimize risks, always use a generous amount of water-based lubricant, start slowly, and never force the massager into the rectum. If you experience pain or discomfort, stop immediately and consult a medical professional if necessary. It's also important to clean your massager thoroughly after each use to prevent infections.