Mars was always considered the traditional ruler of Scorpio so Mars is very much at home in this sign placement. People with Mars in Scorpio make dangerous adversaries. They are blessed with abundant strength, resourcefulness, courage and cunning. They often will see the darker side of human nature and notice negative traits of people far quicker than other people. This combination similar to Mars in Aries will favour a fighting profession such as a soldier although in this case the people are more sly in how they will achieve their objectives. For them the phrase 'All is fair in love and war' definitely applies. Having said that if you want an ally these people will most likely give everything for those they trust and consider a friend or loved one. They will literally die for those they love. People with Mars in Scorpio are likely to be excessively sexual in their outlook. They will likely make good lovers, although do not betray them as their jealousy and thoughts of revenge will have no limits.