Dark Patches Under Your Arms? What They Could Mean for Your Health
Dark patches under the arms are easy to mistake for sweat buildup or a hygiene issue. But when the skin becomes noticeably thicker, feels velvety, and remains dark despite normal washing, there may be another explanation.
One possible cause is acanthosis nigricans, a skin condition that can be associated with insulin resistance and other underlying health issues. The patches themselves are usually harmless, but understanding why they appeared can help you take better care of your health.
