Moles are more or less pigmented benign changes of the external parts of the skin.
One research discovered that people that have 11 or more moles on the right hand have higher risk of developing skin cancer. The research included 3.594 twins, men and women. The number of moles on the right hand is a good indicator of early discovering of this hard disease.
It is very probable that people that have more than 11 moles on the right hand, have more than 100 moles on the whole body.