Natal Mars is the sign where your Mars was placed during birth time, and from there other houses are calculated clock-wise.
If you were born with Mars in Scorpio, then your natal house is Scorpio (Vrischika Rasi) and during transit, MARS forming conjunction (in scorpio), sextile (aspect of 60° which are Virgo and Capricorn in this case), square (aspect of 90° which are Aquarius and Leo here), trine (aspect of 120° which are Pisces and Cancer here), opposition (aspect of 180° which is Taurus here) are discussed in this article.
Conjunction is transiting through same sign as in birth chart, sextile is transiting 3rd or 11th house, trine is transiting 5th or 9th house, opposition is transiting 7th house from natal sign.
Transit MARS conjunct Natal Mars : Start of a new venture, competitiveness and initiation are possible.
Heavy physical work also indicated. This transit is good for sports persons, athletes, body builders.
Success in new projects is possible only after hindrances related to nature of Mars.
You will try to exhibit material and sexual desires.
Professional ambitions are intensified as you try to achieve social status and position.
Suppression of ambitions or physical outburst of energy can lead to physical ailments or mental irritation.
Transit MARS Sextile Natal Mars : Negotiations in business dealings and intelligent actions can lead to success.
Mental energy seeks outlet and writing can be one good way.
Your self confidence will impress others.
Short trips, modern technology and physical fitness programmes are favored.
Transit MARS Square Natal Mars : Rash and impulsive behaviour can lead to trouble.
Need to control EGO and avoid throwing challenges, arguments, impatience.
Energy needs proper channelling, else results can be negative.
Sexually active but not good time for initiating new endeavours. Fire or vehicle accidents possible.
Expression of inner feelings can lead to bad relations.
Few can suffer with high fever, infections and inflammatory diseases.
Transit MARS Trine Natal Mars : Controlled self assertion, confidence and ambition leads to success.
Energy is utilised in creative manner.
Ego can attract you to tasks that bring credit, fame and exposure.
This is right time to restart projects which can prove your worth. Good transit for engineers, architects and people in technological fields.
Transit MARS Opposition Natal Mars : Do NOT try to dominate or provoke others in wrong way.
Need to control jealousy and stop reacting negatively towards others success.
Joint finances, corporate funds, inheritances, partnership business can be in trouble.
Your EGO can stop you from seeking help from authorities.
Afflicted Mars can lead to physical confrontation and legal issues.
Handle fire arms and vehicles carefully.