RH momsh is a protein that can be found in the blood via blood typing. So if you have a RH protein in your blood, you are RH positive. For example, O+, A+, B+, AB+ and kung wala ka naman noon, your blood type can be A-, B-, O- and AB-. Kaya kadalasan isa po sa mga requirements sa lab test ang blood typing para malaman yung blood type and kung RH positive or negative ka. Mostly mas marami ang mga taong RH positive kesa negative at wala namang problema kung RH positive or negative ka.