Swetakushta Yoga (श्वेतकुष्ठ योग) is a highly malefic (Arishta) planetary combination in Vedic astrology that signifies a strong predisposition to white leprosy, commonly known today as vitiligo or leucoderma. As a severe physical affliction, this yoga arises from the difficult alignment of the luminaries (the Sun and the Moon) with the primary natural malefics (Mars and Saturn) across the foundational houses of the natal chart. When this combination forms without mitigating influences, the native is classically predicted to suffer from skin disorders, specifically characterized by the loss of pigment or white leprosy. Because it involves the core physical indicators of the body and vitality—the Lagna, the Moon, and the Sun—its impact on the native's physical well-being is profound and direct.
How It Forms
The authoritative definition of Swetakushta Yoga requires a specific distribution of four key planets relative to the Ascendant (Lagna):
- The Moon must be positioned in the 1st House (Lagna).
- The Sun must occupy the 7th House, placing the two luminaries in direct opposition.
- The natural malefics, Mars and Saturn, must flank the Ascendant by occupying the 2nd and 12th Houses.
This configuration effectively traps the Moon in the Ascendant between Mars and Saturn, creating a severe malefic encirclement of the physical self, while the Sun directly aspects the Moon from the opposite house. The involvement of the 2nd and 12th houses by Mars and Saturn, combined with the Moon in the 1st and the Sun in the 7th, forms the complete and authoritative structure of this yoga.
Classical Effects
The primary and singular classical effect of Swetakushta Yoga is that the native suffers from white leprosy. Classical astrology texts categorize various skin diseases and leprosy (Kushta Roga) based on the specific planetary influences and humors (doshas) involved, showing how different combinations of these same planets yield distinct pathological results.
Related Leprosy Combinations in Classical Texts
To understand the broader context of leprosy in the classical texts, several other specific configurations are documented:
- Bile, Phlegmatic, and Blood Leprosy: According to Jataka Tattvam, if the Lagna lord is conjunct the 6th lord along with a third planet in the Lagna, different types of leprosy manifest. Specifically, if that third planet is Mars, it causes bile leprosy; if it is Saturn, it causes phlegmatic leprosy; and if it is the Sun, it causes blood-like leprosy.
- Water Sign Afflictions: One classical tradition recorded in Jatak Alankaar states that if Venus, Mars, the Moon, and Saturn are placed in water signs—specifically Pisces, Cancer, or Scorpio—the native is prone to blood leprosy.
- Multi-Planet Conjunctions: The classical text Saravali holds that a six-planet conjunction of Mercury, the Moon, the Sun, Mars, Saturn, and Venus in a single house makes the native subjected to leprosy, alongside other misfortunes such as being a dunce, a thief, and deprived of position.
Strength and Timing
Swetakushta Yoga becomes active and delivers its negative results during the relevant planetary periods (Dashas and Bhuktis) of the participating planets—namely the Sun, the Moon, Mars, or Saturn. The intensity of the physical affliction depends on the strength of these planets. If the participating malefics are strong and the Moon is weak, the disease is more likely to manifest in its severe form. Conversely, if the planets are weak or their periods do not run during the native's active life, the effects may remain latent or mild.
Cancellation and Caveats
The primary cancellation for Swetakushta Yoga is the aspect of Jupiter. If a strong, benefic Jupiter aspects the combination, the malefic effects of the yoga are mitigated or canceled, preventing the manifestation of the disease.
In related configurations involving the same four planets (Sun, Moon, Mars, and Saturn) in critical houses, classical texts emphasize the role of Jupiter's aspect as a life-saving shield. For instance, Jataka Parijata notes that if Jupiter is in full strength in the 5th house and aspects the four planets (Sun, Saturn, Moon, and Mars) when they are located in specific difficult houses, the child will escape death. Conversely, if Jupiter is weak or aspects fewer than four of these planets, the protective shield is lost and the child will die.
Variant Readings
While the authoritative definition places Mars and Saturn in the 2nd and 12th houses, alternative classical traditions present slight variations of this combination:
- The 2nd and 11th House Variant: The text 300 Important Combinations records a variant where the Moon is in the 1st house (Lagna) and the Sun is in the 7th house, but Mars and Saturn occupy the 2nd and 11th houses (either Mars in the 2nd and Saturn in the 11th, or Mars in the 11th and Saturn in the 2nd). Under this specific configuration, the text holds that the native similarly suffers from white leprosy.
- Severe Arishta Configurations: Other texts explore different arrangements of these same four planets (Sun, Moon, Mars, Saturn) that lead to severe physical arishta or death rather than leprosy. For example, Jataka Parijata states that if Saturn is in the 12th, the Sun is in the 9th, the Moon is in the 1st, and Mars is in the 8th, it causes death unless aspected by a strong Jupiter. Similarly, How to judge horoscope 2 notes that if the Lagna, 8th, 9th, and 12th houses are occupied by the Moon, Mars, the Sun, and Saturn respectively, the child dies quickly.