Determining the severity of a dog's injury can be challenging, especially without proper veterinary training. However, sure signs may indicate a more severe injury requiring immediate veterinary attention. Here are some key indicators that an injury may be severe: Profuse bleeding: If the injury involves heavy bleeding that doesn't stop or slow down, it may indicate a significant blood vessel injury or severe trauma. Apply gentle pressure with a clean cloth or bandage to control bleeding and seek veterinary help promptly. Difficulty breathing: Labored or rapid breathing, shortness of breath, or obvious signs of respiratory distress can indicate a severe injury or internal organ involvement. This requires immediate veterinary attention. Loss of consciousness or seizures: If your dog becomes unresponsive, loses consciousness, or experiences seizure activity, it is a critical emergency, and immediate veterinary care is necessary. Severe pain: Intense and prolonged pain, especially if accompanied by vocalization, whimpering, or signs of distress, may indicate a significant injury or fracture. Visible bone deformity: If you can see an obvious bone deformity, such as a dislocation, open fracture, or severe swelling around a joint, it suggests a potentially serious injury that requires immediate veterinary evaluation. Inability to bear weight on a limb: If your dog is unable or unwilling to put weight on a limb, it may indicate a fracture, ligament tear, or significant soft tissue injury. Excessive swelling or bruising: Severe swelling or bruising around an injured area can suggest internal bleeding or tissue damage and may require immediate veterinary attention.