<prompt> Yellowing of the skin occurs in hypothyrodism because of -Increased bilirubinIncreased obolesterolIncreased caroteneIncreased  <response>: The yellow tinge to the skin in hypothyroidism is due to carotene accumulation. This is because the conversion of beta-carotene provitamin A to 2 molecules of vitamin A retinol is accelerated by thyroxine and thus in hypothyroidism there is hyper beta-carotenemia. Reference : page 2291 Harrisons Principles of Internal Medicine 19th edition 