You notice: Dry, flaky feetiStock/nebari
It could be: Thyroid problems, especially if moisturizer doesn’t help. When the thyroid gland (the butterfly-shaped gland in the base of your neck) goes on the fritz, it doesn’t properly produce thyroid hormones, which control metabolic rate, blood pressure, tissue growth, and skeletal and nervous system development. “Thyroid problems cause severe dryness of the skin,” says Marlene Reid, DPM, a foot specialist in Naperville, Illinois. “When we see cracking on the feet, or if moisturizer doesn’t improve dryness over a few days, we usually refer patients to their primary doctor to make sure their thyroids are OK.” Brittle toenails can also signal thyroid complications. Don’t miss these other 13 silent signs of a thyroid problem.
You notice: Bald toesiStock/ValuaVitaly
It could be: Arterial disease. If the fuzz on your toes suddenly disappears, it could signal poor blood circulation caused by peripheral arterial disease (PAD). “Signs of PAD can include decreased hair growth on the feet and ankles, purplish toes, and thin or shiny skin,” says Suzanne Fuchs, DPM, a podiatric surgeon at North Shore University Hospital in New York. A buildup of plaque in the leg arteries, PAD affects about 8 million Americans. Symptoms are subtle, but doctors can check for a healthy pulse in the foot or spot PAD on an X-ray. “If I take an X-ray of a broken foot, and I see a hardening of the arteries, 99 percent of the time, the same thing is happening in the heart blood vessels,” says Gary A. Pichney, DPM, a podiatric surgeon of The Institute for Foot and Ankle Reconstruction at Mercy Medical Center. (These 11 tests detect silent heart diseases.)