Facial Changes That May Signal Health Issues, Eyebrow Thinning – Could indicate hypothyroidism or atopic dermatitis, both linked to hair loss. Severe Acne & Unusual Hair Growth – May be a sign of PCOS, a condition causing irregular periods, weight gain, and excessive hair growth. Red Rashes & Bumps – Could be linked to autoimmune diseases like lupus or celiac disease. Under-Eye Circles – If paired with red or dark spots, it may signal dermatomyositis, an autoimmune disorder causing muscle weakness