Sometimes my hand's palm is sweating without any causes, can anyone tell why it can be happened?

Hyperhidrosis. Primary hyperhidrosis (ph) is the medical term used to describe the condition of severe excessive sweating. Simply put, ph is a condition that involves overactive sweat glands. This usually occurs in the underarms, palms of the hands, and soles of the feet. Recently, Botox injections have been used as a safe, quick, and effective treatment for severe excessive sweating of these areas.
Hyperhydrosis. Excess sweating can happen anyhwere. Sometimes it is palms sometimes armpits/forehead/etc. Usually it will be the same place each time. There are specific treatments and it has to do often with your nervous system wiring.