According tp hippocrates there are four types of temperaments namely : Sanguine, Choleric, Melancholic, Phlegmatic. It is mainly focused on the body fluids. The Sanguine is stands for blood (red fluid) The Choleric is stands for bile (yellow - green fluid) The Melancholic is stands for black bile. The Phlegmatic is stands for phlagum (nasal discharges etc.)