Eyebrow hair loss, also known as madarosis, is the thinning or complete absence of hair in the eyebrows. It can affect one or both eyebrows and can be caused by various factors, including: Medical conditions: Alopecia areata (an autoimmune disease that attacks hair follicles), thyroid disorders, skin conditions (eczema, psoriasis), and infections (fungal, bacterial).
Treatments: Chemotherapy and radiation therapy can cause temporary or permanent eyebrow hair loss.
Trauma: Over-plucking, burns, or injuries can damage hair follicles and lead to eyebrow loss.
Nutritional deficiencies: Lack of iron, biotin, or other essential nutrients can contribute to hair loss.
Stress: Severe or chronic stress can disrupt the hair growth cycle and cause temporary eyebrow thinning.
Disclaimer: This information is for general knowledge only and does not constitute medical advice. If you are experiencing eyebrow hair loss, consult a dermatologist to determine the underlying cause and discuss treatment options.