An intravenous pyelogram may be used to diagnose disorders that affect the urinary tract, such as kidney stones, bladder stones, enlarged prostate, kidney cysts or urinary tract tumors. During an intravenous pyelogram, you'll have an X-ray dye (iodine contrast solution) injected into a vein in your arm. The dye flows into your kidneys, ureters and bladder, outlining each of these structures.
By Mayo Clinic Staff. Here are some of the most common causes of true under-eye circles. 1  Allergies. 2  Atopic dermatitis (eczema) 3  Contact dermatitis. 4  Fatigue.  Heredity â dark under-eye circles can run in families.
Other causes of dark under eye circles. Allergies can cause dark under eye circles in two ways. First, the allergic reaction itself can cause smudges in the under eye area. Second, any condition that causes you to rub your eyes can make dark circles worse because scratching or rubbing can actually darken the skin. Remember, it's very delicate, so be gentle with your skin. Fatigue or inadequate rest. Well, it's not directly related to dark under eye circles.