@rachelle Hello, No dehydration doesn’t cause swelling in the fingers. swollen fingers; rather, excess fluid intake can potentially lead to swelling. Drinking excessive amounts of water, perhaps during a tedious exercise can cause hyponatremia, and hyponatremia can result in swollen fingers. When the body holds onto excess water, it can lead to swollen tissues in the extremities, especially in the fingers. Symptoms include bloating and puffiness.

@rachelle Hello, in some cases it can be resolved without any type of treatment but in some cases, treatment might be needed. Swollen fingers can be a sign of fluid retention or inflammation of the fingers. Swollen fingers could be caused by underlying medical conditions, lifestyle factors, and medication side effects. It could be caused by arthritis, exercise, high-salty food, and medication. You can try icing the affected area, and compressing the area with bandages, if it doesn’t get better then please contact medical professional Swelling of the fingers can be completely harmless and resolve on its own, or it can be a sign of a more serious medical condition, so medical consultation may be needed.