You could have lymphoma
Hyperhidrosis can also be a side effect of a number of health conditionsâincluding gout, hyperthyroidism, and Parkinson’s diseaseâand even some medications. The real problem is it can be a symptom of lymphoma or cancer of the lymph cells. It’s not completely understood yet why lymphoma can cause drenching sweat; it could be something about lymphoma itself or how the body responds to it, Pariser says.