Radial Artery (wrist) is used where patient comfort is an issue. The patient is able to walk immediately after the procedure. Bleeding from the wrist site is less common. However, rarely, the radial artery being a narrower artery, the procedure can be painful. If the radial artery is damaged during angiography, the surgeons cannot use that artery as a graft during bypass surgery. Radial artery approach is slowly gaining ground in today’s medical field, however.