What causes yellowing of the skin on the hands?

Yellowing of the skin on the hands may be caused by the following factors: 1. Dietary factors: Consuming excessive amounts of foods rich in carotene, such as carrots, pumpkins, and citrus fruits, may increase blood carotene levels, leading to yellowish discoloration of the skin, including on the hands. 2. Thickened stratum corneum: Individuals in certain occupations or those with heavy manual labor may develop thickened skin layers on their hands, which can appear yellowish. This condition typically does not affect health. 3. Anemia: Anemia may reduce blood volume, resulting in yellowish skin on the hands and paleness of the face. 4. Medical conditions: Besides the above reasons, diseases such as jaundice and chronic hepatitis may also cause yellowing of the skin on the hands. Yellowing of the skin on the hands can result from various causes. It is recommended to evaluate the specific situation accordingly, and consult a doctor when necessary to determine the underlying cause and receive appropriate treatment.