Mars in 7th house
Mars in Aries
For the Aries Ascendants of Mars, Venus ruled sign rules the 7th house. Mars going into 7th house in Aries ascendants is in the sign of Venus which is impartial to Mars, but Mars basic trait is of domination and hostility being a soldier. Therefore, they occasionally become argumentative and controlling against their spouse. Controlling these instincts is important for the relation.
Mars in Taurus
If it is Taurus Ascendant, Mars will be ruling 12th & 7th house and sitting in 7th house in Scorpio sign. Mars is in its own sign, therefore it would guard the house and native will be kind of a protector to spouse and marriage, but Scorpio remains the sign of alterations and vicissitude. It will be occasionally unpleasant marriage. There will be tension & domination in marriage. Some spontaneous events will occur in marriage but Mars should still be able to guard the marriage. Getting married to mangalik is recommended.
Mars in Gemini
If it is Gemini Ascendant, Mars will be ruling 11th & 6th house and sitting in 7th house in Sagittarius sign. This exhibits that native's hopes and desires gets fulfilled when they connect with others possessing philosophy, higher learning and morality. Mars in Sagittarius makes native dominant about opinions and values. They are hard-hitting speakers and hence they can be inspirational speakers. Problem arises when native owns wrong values, yet considers them to be correct and even fights for wrong beliefs. In relationship too, different beliefs and views may hurt marriage.
Mars in Cancer
When it is Cancer Ascendant, Mars will be ruling the 5th & 10th house and sitting in 7th house in Capricorn sign, where Mars is exalted. As Mars is in the highest decorum, here person will become guardian of relationship. Native will always quarrel here for the righteous reason. Since Mars is in sign of Law & Order & in house of Courts, it positively shows a headstrong lawyer.
Mars in Leo
If it is Leo Ascendant, Mars will be ruling 9th & 4th house and sitting in 7th house in Aquarius sign. Native must not get much indulged in their religious beliefs, otherwise arguments or even physical fights with spouse or other people may take place. Native will be very hardcore about religious views and prefers to dominate other's views. Marriage may be deferred and native may marry someone who is also a mangalik.
Mars in Virgo
If it is Virgo Ascendant, Mars will be ruling 8th & 3rd house and sitting in 7th house in Pisces sign. As Mars is in a sociable sign, this exhibits that your in-laws and spouse are of spiritual nature and they will guard you and relationship. Spouse may be indulged in activities like, taekwondo, yoga etc. Here also, Mars will exhibit its dominance energy, but more to guard the relation.
Mars in Libra
If it is Libra Ascendant, Mars will be ruling the 7th & 2nd house and sitting in 7th house in Aries sign. Spouse will be headstrong and possess dominance power. Spouse enjoys dominating the relation but since Mars is in own sign, it also protects the relation. Spouse can be in any forces like army, police etc, doctor or someone working with machines and tools. This looks like position of dominance and arguments, but that will be for guarding the relation.
Mars in Scorpio
If it is Scorpio Ascendant, Mars will be ruling 6th & 1st house and sitting in 7th house in Taurus sign. As Mars isn’t in a sociable sign here, it exhibits a constant tussle of dominance between couple. Conflicts and hostility are common in relations here but in some cases, it might even become physical between couple. Fights generally will be because of wealth and assets. This doesn’t mean a divorce in chart, for that Transitting and Dashas must also authorize such break in relation. This is a mangalik position.
Mars in Sagittarius
If it is Sagittarius Ascendant, Mars will be ruling 5th & 12th house and sitting in 7th house in Gemini. Native will be aggressive and lively in relationship. Native desires to dictate the relation, which doesn't go too well. As Mars is in enemy sign, it exhibits possible power tussle or dominance between couple. Education wise, they involve in mechanical, technical or electronic business and make a business out of it.
Mars in Capricorn
If it is Capricorn Ascendant, Mars will be ruling 4th & 11th house and sitting in 7th house in Cancer sign, where it is debilitated. If Mars is nearby the actual debilitation degree, then it exhibits power tussle and arguments between you, spouse and mother which can even break the relation. Here person picks arguments and physical fights to resolve the issues but it doesn't help. It exhibits that disputes with spouse, one may end up losing the property. Conjunction of other planets, other yogas and dashas will alter the scene completely.
Mars in Aquarius
If it is Aquarius Ascendant, Mars will be ruling 3rd & 10th house and sitting in 7th house in Leo sign. It a mangalik position, so native must marry another mangalik. If done so, this position can be a good one where spouse possess vibrant personality and guarding nature. Otherwise it may lead to conflicts and even physical abuse.
Mars in Pisces
If it is Pisces Ascendant, Mars will be ruling 2nd & 9th house and sitting in 7th house in Virgo sign. There will be hostile communication with the spouse. This is a Mangalik position and it is preferable to marry another Mangalik. As Virgo is sign of being punctilious and Mars is Energy, it exhibits that energy is going into fault finding of spouse, leading to conflicts.