When an injury occurs, it can be difficult to immediately gauge whether it is in need of medical attention. Even with the immediate uncertainty, there are several signs that often indicate professional medical attention is needed. One aspect to take into account is the size of a wound and whether there is something still directly inside the wound. In these situations, there is also typically extreme blood loss, risk of infection, or exposed tendons or bones; it is always best to seek medical attention if these signs are present. More potential scenarios that call for medical attention are a clear deformed limb, severe burns, and any potential trauma to the head or nervous system.