This is also the house of diseases. The diseases caused in this bhava is more pathogenic than physiological. If a planet is weakly placed in this bhava then the native suffers diseases in the physiological system ruled by the planet. The physiological system ruled by different planets are as follows:
Sun - Skeletal sytem
Moon - Circulatory system
Mars - Muscular system
Mercury - Nervous system including skins
Jupiter - Digestive system
Venus - Reproductive system
Saturn - Excretory system
Along with the systems governed by different planets, they also govern other body parts, which needs to be studied to understand different diseases a person would be suffering with. Understanding diseases are an essential part of medical astrology and shall be taken up in another article.
Sixth house is also the house of maternal uncles and in whole it represents the mother’s family. If malefics are placed here as well as afflicted, then the native’s maternal uncles might suffer.
If a benefic is placed in the sixth, its natural significance suffers with the expense of the house itself (the house gains with the placement of a benefic). Thus is Moon is placed in the sixth the person suffers with lack of mental felicity and involved in many unlawful activities if afflicted too. Similarly if Venus is so place, the significations such as relationship, marital harmony etc., suffer heavily and if Jupiter is so placed, the person suffers due to excessive eating (they would like to eat, but many things would be prohibited by the doctor). If Mercury is so placed, then the person gets into trouble due to communication and he is troubled by his kiths & kins.
Venus is placed in Marana Karaka Avastha (MKA) in this house and the natural as well as functional significations of Venus significantly suffer while it is placed here.
Planets in sixth have argala on the 5th, 8th and the 3rd house. Hence planets in this how singnificantly affect the significations of the mentioned houses.
Powerful (but can be overpowered by his enemies); Successful in endeavours; Glorious; Famous; Wealthy; Passionate
Billious temperament; Suffering to Maternal uncle; Heart or eye diseases; Bone related diseases; Acidic Troubles
Conquer enemies (only if strong)
Poor; Sickly / weak constitution; Stomach ailments; Stupidity; Suffer in enemy hands; Low sexual vigour; Low life force- Lazy and Lethargic; Lower longevity; Cruel; Angry; Sinful deeds, working against the laws (govt.); Sickly in childhood.
Famous; Successful in his undertakings; Valorous; Defeat his enemies; Blessed with children; Wealthy; Glorious like a king; Highly passionate; Handsome; Stout bodied and Leader in his community
Rheumatism; Leprosy (association with Mercury); Suffer hyperacidity; Troubles to maternal uncle and Spendthrift; Troubles in Litigations.
Respected/ favour by the ruler/ govt.; Author; Free from enemies; Victorious in the battlefield; Free from diseases; Earn wealth with his own efforts.
Leprosy (association with Mars and 6th lord); Rheumatism & shooting pains (affliction by Saturn or Nodes); Troubled by enemies/ Enemies in his community; Lazy; Harsh speech; Belligerent; Argumentative and gets angry often in arguments; Obstacles in achieving success in educational pursuits; Showy; Proud; Fond of creating controversies; Restless
Conquer enemies/ Free from enemies; Progression of lineage; Free from diseases, Clever; Interest in Mantra recitation (house of speech, 2nd, from the house of mantra, 5th); Famous; Reputation through spouse
Marks of wound on the body; Rheumatism; Suffering from cough and cold; Acidity; Sickness to mother; Lazy; Troubled by enemies; Falling sick due to excessive eating.
Devoid of enemies
Dangerous and scheming enemies (affliction); Suffer poverty; Unhappy; Relationship with many women/ Disliked by women; Inimical toward wife; Distressed; Mean; Unsuccessful in efforts; Deprived of happiness from father or guru; Dull; Trouble in begetting children
Powerful; Vanquish his enemies and diseases (however, troubled by them); Travel far and wide (association of Mars)
Belligerent; Financial distress; Little learning; Troubles to legs/ Suffer rheumatic pains, Suffer loss of longevity (if Saturn is eighth lord); Eat a lot; Wealthy; Proud; Passionate; Courageous; Evil minded; Suffer early loss of maternal uncle