What are all the signs and symptoms of an internal injury?

Signs of an internal injury: 1. Localised swelling2. Discolouration of the skin Symptoms of an internal injury: 1. Localised pain 2. The patient will protect and guard the injury siteOther signs include: 1. The patient with blood coming out the ears and nose - Head Injury 2. The patient that coughs up blood - Thoracic Injury 3. The patient with blood in their stool - Abdominal Injury