Mars gets debilitated when it is placed in the sign of Cancer, which means Mars becomes very weak by virtue of its placement in the sign of Cancer. Accordingly debilitated Mars in the twelfth house of a horoscope may not produce significant positive or negative results for the native, unless it is supported by the other positive or negative planets in his horoscope. The type of results given by such debilitated Mars whether they are positive or negative; depend on the working nature of Mars and on the overall tone of the horoscope in question.
Benefic retrograde debilitated Mars in the twelfth house of a horoscope in the sign of Cancer can bless the native with good results related to marriage, profession, fame, authority and many other types of good results depending on the overall tone of his horoscope. Such benefic retrograde debilitated Mars can bless some natives with positive results through the field of their marriage, when present in harmony with marriage supporting planets in their horoscopes. Benefic retrograde debilitated Mars in the twelfth house in the sign of Cancer can bless some natives with life partners who may be rich and these natives may enjoy many pleasures by virtue of such marriages. For example, if benefic retrograde debilitated Mars is placed in the twelfth house of a horoscope in the sign of Cancer, benefic Venus is placed in the third house of this horoscope in the sign of Libra along with benefic Mercury; and benefic Saturn is placed in the seventh house of this horoscope in the sign of Aquarius, the native may receive this benefit. The native benefitting from benefic retrograde debilitated Mars in the twelfth house in the sign of Cancer and other benefic planets may get married to a woman who may be rich and the native may witness benefits through this marriage.
The favorable impact of retrograde debilitated Mars in the twelfth house in the sign of Cancer can also render professional success to the natives benefitting from it through many fields of profession and it can bless them with fame and authority also. Such benefic retrograde debilitated Mars can render posts of authority in the house of government to some natives under its impact through politics or through jobs and these natives may achieve such authority as judges, army officers, administrative officers, foreign services officers, naval officers and many other types of professionals. For example, if benefic retrograde debilitated Mars is placed in the twelfth house of a horoscope in the sign of Cancer, benefic Sun is placed in the eighth house of this horoscope in the sign of Pisces, benefic retrograde Venus is placed in the ninth house of this horoscope in the sign of Aries, benefic Rahu is placed in the fourth house of this horoscope in the sign of Scorpio and benefic Ketu is placed in the tenth house of this horoscope in the sign of Taurus, the native may join the navy. The native benefitting from benefic retrograde debilitated Mars in the twelfth house in the sign of Cancer and other benefic planets may get blessed with a post of authority in the navy and he may witness success and recognition as a naval officer.
At the same time, if benefic exalted Moon is placed in the tenth house of this horoscope in the sign of Taurus along with benefic Ketu, benefic exalted Jupiter is placed in the twelfth house of this horoscope in the sign of Cancer along with benefic retrograde debilitated Mars; and benefic Mercury is placed in the ninth house of this horoscope in the sign of Aries along with benefic retrograde Venus; Neechbhang Rajyoga may be formed in the twelfth house of this horoscope. As a result, the native benefitting from benefic retrograde debilitated Mars in the twelfth house in the sign of Cancer and other benefic planets may achieve success in competitive exams held for selection in the navy and he may get selected for the highest possible direct rank in the navy. The collective influence of such benefic retrograde debilitated Mars and other benefic planets can bless this native with very good amount of success and recognition as a naval officer and he may serve on very high levels before retiring from the job. Apart from this, benefic retrograde debilitated Mars in the twelfth house in the sign of Cancer can bless the natives with favorable results through many other professional fields, depending on the overall horoscopes of these natives.
On the other hand, malefic retrograde debilitated Mars in the twelfth house of a horoscope in the sign of Cancer can trouble the native with problems related to marriage, profession, health and many other types of problems depending on the overall tone of his horoscope. Some natives may feel the heat of such malefic retrograde debilitated Mars in the sphere of their marriage due to which they may have to face many types of problems related to this field. Malefic retrograde debilitated Mars in the twelfth house in the sign of Cancer can delay the marriages of some natives and this delay may become longer with the addition of other negative planets to the horoscopes of these natives. In an extreme case of this type when supported by other malefic planets, malefic retrograde debilitated Mars in the twelfth house of a horoscope in the sign of Cancer can delay the marriage of the native till his age of 41, unless there is a strong marriage promoting planet in his horoscope.