Koro is a psychological condition characterized by an intense fear that one's genitals are retracting into the body, leading to the belief that they may disappear. This phenomenon is often associated with anxiety and can cause significant distress for those affected. Koro is most commonly reported in certain cultures, particularly in parts of Southeast Asia. The condition can manifest in both men and women, although it is more frequently observed in men. Koro may be triggered by various factors, including cultural beliefs, stress, or even specific events. Treatment typically involves psychological support and addressing the underlying anxiety.