Hair loss during cancer treatment is one of the most feared side effects , often more distressing than the treatment itself. Many patients ask: “Will I lose all my hair?” “Will it come back?” “Can I prevent it?” This guide answers these questions practically and honestly , based on real patient experiences. 🔎 TL;DR (Quick Summary) Hair loss during cancer treatment is temporary in ~95% patients It usually starts around day 20  and peaks by 3 months It happens because chemothe