In Vedic astrology, a Dosha is a planetary affliction or challenging configuration that may create obstacles in specific areas of life. Common Doshas include Mangal Dosha (Mars affecting marriage), Kaal Sarp Dosha (all planets between Rahu-Ketu), and Pitru Dosha (ancestral karma). Doshas are not curses — they indicate areas requiring awareness and can often be mitigated through remedies, mantras, or gemstones.