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Upper and lower back, long bones most commonly affected
Can also include abdomen, chest, arms
Often multiple sites are involved
Intensity can be debilitating and<unk>  can last from hours to days with some individuals never being completely without<unk> 
Upper and lower back, long bones most commonly affected
Can also include abdomen, chest, arms
Often multiple sites are involved
Intensity can be debilitating and<unk>  can last from hours to days with some individuals never being completely without<unk>
Vaso-occlusive pain crisis
Acute arterial ischemia
Bony infarction
Crotaline envenomation
Dactylitis
Neurogenic shock
Avascular necrosis of femoral head
Heat stroke