As the name signifies Complex Regional Pain Syndrome is necessarily complex because it involves a collection of symptoms some but not necessarily all of which affect individuals. In fact the symptoms are apt to change daily and throughout each day. It's called regional because the initiating event is in a region. Sometimes this can be confusing to those who have doubts about how a "regional pain syndrome" can affect a whole body. Having a broader name would seem to be less confusing. I'm not sure this is always so.
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