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.
Peripheral neuropathy is caused by damage to your peripheral nerves. Peripheral nerves are nerves that are not located in the brain or spinal cord. They are found throughout your body and help you feel things. They also control the function of your organs. The damage is usually to nerves in the hands, feet, arms, and legs.