Why could not Pandu have children?

Pandu, a central character in the Indian epic Mahabharata, was cursed that he would die if he ever engaged in sexual relations. This curse made it impossible for him to father children naturally. As a result, he sought alternatives to ensure his lineage continued, leading to the practice of using his wives, Kunti and Madri, to invoke divine beings for offspring. Thus, he ultimately had sons through these divine interventions rather than through traditional means.