Hemarthrosis is the medical term for bleeding in a joint. When you have pain and swelling in a single joint (monoarticular), hemarthrosis is a common cause. It is a cause for concern not only because of the pain, but because prolonged blood exposure can damage the cartilage.
Injury to the peripheral nerve (nerves outside of the brain and spinal cord) may result from blunt force, fractures, crush injuries, stretch, penetrating or cut injuries. The nerves of the upper limb are the most commonly injured. The healing process from nerve injury can take from a few weeks to a few months.
the nerve is completely separated, like with a cut nerve. Both a fourth and fifth degree injury require surgery for recovery. A sixth degree injury is a combination the other types of nerve injury and recovery and treatment will vary depending on which type of nerve injury is present. Nerve Recovery and Regeneration Following nerve injury, the nerve will try to repair itself by sprouting regenerating nerve units. These regenerating units will then try to grow down the nerve to reinnervate muscle or skin. If they make a correct connection, motor nerve to muscle or sensory nerve to skin, then recovery of muscle function