Hip flexors are the part of you that let you bend and lift your knees. They are present deep inside of your abdominal cavity, and belongs to one of the strongest muscles in your body. As show above, they are present at the center of your body, and surely they play an important role. It is not possible to live without them and surely life is like a living hell if your hip flexors are in pain and discomfort. They are very delicate muscle, their anatomy is very sensitive and fragile if not taken care properly.