Can drinking a lot of water cause ankles to swell?

Yes, drinking excessive amounts of water can lead to a condition called water retention, which may cause swelling in the ankles and other parts of the body. When the body retains more fluid than it can excrete, it can result in edema, manifesting as swelling. However, other factors such as high sodium intake, medical conditions, or prolonged sitting can also contribute to ankle swelling. If swelling persists or is accompanied by other symptoms, it's advisable to consult a healthcare professional.