Melasma is a common skin condition that affects both men and women. However, it is more common in women and those with darker skin tones. Melasma is less common in men, but it negatively affects quality of life in men just as much as it does in women. Although melasma has been extensively studied in women, there have been few studies on the clinical pathology and treatment of melasma in men.

When your immune system attacks the thyroid, it usually targets thyroglobulin. This causes it to produce antithyroglobulin (anti-TG) antibodies. From there, your doctor may order an antithyroglobulin antibody test (anti-TG test) to check the levels of these antibodies in your blood. High levels may indicate an autoimmune condition.