Why people get palmar hyperhidrosis?
As far as we know now excessive hand sweating or palmar hyperhidrosis is genetically determined. The gene is dominant but the penetration within the same family varies. It is not a psychological problem and it is a totally involuntary action. The possibility of gene manipulation as a treatment modality is still far away from being developed. Hopefully in the future this will enable physicians and researchers to treat this ailment without surgery.