Dull yellow skin can be improved by treating the cause, adjusting sleep, strengthening nursing care, and medical aesthetic treatment. 1. Treating the cause: Dull yellow skin caused by underlying diseases, such as gastrointestinal diseases, kidney disease, chronic liver disease, severe anemia, etc., should be treated for different underlying diseases. 2. Adjustment of sleep: dull yellow skin may be due to long-term sleep deprivation, sleep adjustment should be made to improve the mental state. 3. Enhance care: dull yellow skin may be due to poor skin care, resulting in keratin accumulation, pigmentation, etc., usually pay attention to regular cleaning, strict sunscreen, hydration and moisturizing, etc. to improve the dull yellow skin. 4. Medical treatment: photorejuvenation, chemical skin resurfacing and other medical treatments can be used to improve the yellowish skin. Different causes of yellowish skin lead to different optimal treatment programs. It is recommended that patients who wish to have treatment go to a regular medical institution for consultation and symptomatic treatment.