Dry, flaky skin or lips
This is a common warning sign of dehydration. It may also indicate a more serious problem that affects sweat gland function, such as hypothyroidism (marked by insufficient levels of thyroid hormone) or diabetes, says Dr Roshini Raj, assistant professor of medicine at the NYU School of Medicine and author of What the Yuck?! Other signs of hypothyroidism include feeling cold, weight gain and fatigue. Diabetes symptoms include extreme thirst, frequent urination and blurry vision. The symptom could also reflect eczema, psoriasis, dermatitis or an allergic drug reaction.
Excess facial hair
Unwanted hair, particularly along the jawline, chin, and upper lip, could be a symptom of polycystic ovary syndrome, a hormone imbalance in which male hormone levels are elevated. But don’t immediately assume something is wrong: Excess hair on your face could just be a trait you inherited.
Soft, yellow spots on eyelids
Patients with these cholesterol-filled lesions, called xanthelasma, may have a higher risk of heart disease. A 2016 study published in Medical Principles and Practice found that subjects with xanthelasma had higher BMIs and total levels of cholesterol, thus putting them at great risk for a cardiac event.