not sweating when or where you should is called anhidrosis. it’s generally rare but in certain situations can be serious. anhidrosis can occur in isolated spots on the skin or all over. an affected person may notice the lack of sweating or may not be able to tolerate heat outdoors. besides having dry skin that should be moist symptoms can include dizziness muscle cramps and flushing. normal areas of skin may sweat excessively to try to compensate for the non-sweating skin. causes of anhidrosis include: drug side effects (oxybutinin topiramate amitriptyline and others) dehydration skin damage nerve damage genetic conditions anhidrosis increases the risk for heatstroke which can be life-threatening people with anhidrosis should take extra precautions to limit heat exposure.
what might cause me not to sweat?