8th house belongs to Mars, which is an enemy of Ketu. If Ketu in 8th house is benefic then the native begets a son at thirty four years of age, or after the marriage of ones sister or daughter. If Jupiter or Mars are not in 6th and 12th house then Ketu does not give malefic results. Similar effect is there when Moon is in 2nd house. If Ketu in 8th house is malefic then the native's wife has ill health. Son will not be born, or may die. The native may suffer from diabetes or urinary problem. If Saturn or Mars are in 7th then the native is unlucky. In case of malefic Ketu in 8th house the native.s character determines the health of his wife. After twenty six years of age the family life suffers.