My mother has clammy hands. what does this mean?

Clammy hands: Sweaty palms can be completely normal, the product of stress or worry. When they are constantly clammy, regardless of situation, weather or stress level, it may be due to hyperhidrosis. This condition is one of overactive nerve impulses causing sweaty palms, soles and underarms. It can be very isolating, and many people never get diagnosed. If it concerns her, have her see her dermatologist.