The vessels of the inner thigh have both arteries and veins. The main arterial vessels of the inner thigh are the femoral artery and its branches, and the main veins are the femoral vein and its branches; the femoral artery and the femoral vein are companionable in the inner thigh. The distinction between arteries and veins is not based on the general location, but on the thickness of the vessel wall, the oxygen content of the blood within the vessel, and the direction of blood flow. The arterial vessels, which receive blood from the heart, have thicker walls, narrower lumens, are more pulsatile, and are located deeper than the veins. As well as the fact that arterial vessels contain oxygen-rich, bright red arterial blood. whereas venous vessels contain darker red venous blood that is more carbon dioxide rich. The arterial blood vessels flow from the heart to the tissues and organs, supplying oxygen and nutrients, while the venous blood vessels flow from the tissues and organs back to the heart. If you need to know more about the blood vessels in your inner thighs, you can consult a doctor at the hospital.