Mars in Scorpio in a natal chart indicates that you have a strong need for power, control and emotional intensity. You are likely to be passionate and driven, but also quite secretive and intense. You may have a strong sense of loyalty and are likely to be devoted and protective of those close to you.
Being a Scorpio, you are likely to be quite resourceful and determined; however, you can also be overly suspicious and jealous. Your emotions tend to run deep, and you may struggle with issues of trust and control, as well as having difficulty letting go of things. You can be quite intense and passionate in your relationships, and you often have strong sexual energy.