Your sexual energy is very strong with Mars in your eighth house, but it needs constructive channeling for its release. You tend to depend on other people’s emotional or material resources to reach your goals, and may need to be careful of not sponging off of others. You may have conflicts over your partner’s money and difficulties receiving inheritance (emphasized by hard aspects and diminished by trines and sextiles to Mars;The energy is used to express aggression, drive and ambition. These individuals often find themselves in conflict with others and with relatives at sometime in their lives. The sexual nature is strong with this placement and can become addictive if not balanced. These individuals have intense passions and dramatic shifts in emotion. They feel strongly about things and response assertively. There is danger of accidents and surgeries. These individuals need to exercise regularly as it will aid in balanced health. If they repress their natural energies and drives they can find themselves suffering from illnesses. It is important for them to have a healthy outlet for their intense nature.
But in Leo ascendant Mars Will become Rajyog karaka as it will own 4th and 9th houses (kendra n trikon) .. so it will be benefic in Leo ascendant.