In about 40% of the cases there is a family history of hyperhidrosis. This means that it is likely a genetic disorder, though not everyone knows of a family member who experience from this ailment. If there is no family history then the patient might be the first one to carry the genes for hyperhidrosis.
There are some medical ailments that can cause excessive sweating. Thyroid, menopause, and anxiety can reason excessive sweating, but this perspiration will appear on the majority of the body, whereas hyperhidrosis is limited to certain areas such as the hands or face. Night sweating can be a presentation of some malignant diseases or infections such as tuberculosis