3. Your skin is looking white as a sheet
Underneath your skin are capillaries, the smallest blood vessels in the body that carry blood cells. When you have fewer blood cells, you don’t have enough blood coursing through your skin and therefore your skin looks more pale. This is a fairly common sign, says Dr. Kahn.
“When I look underneath someone’s eyelids, I can detect how pale they are and that’s a pretty good indication for anemia. Or sometimes the palms or fingernail beds look pale,” he says. Fortunately, these signs are pretty obvious, so if you notice an abnormal lightening of the skin when you look in the mirror, you should make an appointment to see your doctor.