People wear compression stockings for comfort, to do better in sports, and to help prevent serious medical conditions.
Basically, they improve your blood flow. They can lessen pain and swelling in your legs. They can also lower your chances of getting deep vein thrombosis (DVT), a kind of blood clot, and other circulation problems.
They come in different sizes and strengths, so you or your doctor will need to decide which option will work best.