Tropical cyclones (TCs), such as hurricanes and typhoons, often bring heavy rainfall when they move over land. While they are known for causing floods, they can also help reduce droughts by replenishing soil moisture and water supplies. However, their overall impact on droughts around the world hasn't been well understood. This study looks at how TCs have affected drought conditions globally from 1980 to 2020. The results show that without the rainfall from TCs, droughts in affected regions would happen much more often—up to 94% more frequently—and last longer, up to 97% longer. In some regions like North Central America and East Africa, the area experiencing drought would increase by 50% to 100% without TC rainfall. The study also finds that TC rain can have lasting effects: in wetter (humid) areas, the impact on water systems can last for several years, while in drier (semi-arid) areas, the effects typically last for about a year. These findings highlight the importance of including TCs more accurately in climate models to better understand and manage both flood and drought risks in the future.