Reflex neurovascular dystrophy (RND) is a painful condition. It usually brings about severe pain in the joints and muscles in children. The pain is unbearable. This pain is caused by nerve sensitivity wherein the nerves in the body send abnormal pain signals to the brain. Girls are more affected by this condition.
Reflex neurovascular dystrophy (RSD) originates from problems in the sympathetic nervous system. The sympathetic nervous system controls blood flow movements and also helps regulate heart rate and blood pressure. When one gets hurt, the sympathetic nervous system modifies blood vessels so that the person will not lose too much blood from the injury site. After that, this system will allow the blood vessels to open up, so blood can get to the damaged tissues and then help repair them.
If one has RSD, the sympathetic nervous system gets abnormal mixed signals that go on continuously. This can also cause a lot of pain and swelling at the injury site.
