The main symptom of brownish-yellow disease arthritis is that the whole body skin, sclera and cornea pigmentation is brownish-yellow, the ear, nose and cartilage can become blue, the edge of the tympanic membrane is grayish-black, and the hearing is often reduced. Due to the lack of uronic acid oxidase, the intermediate metabolites of phenylalanine and tyrosine (uronic acid) cannot be further oxidized and decomposed, and accumulate in the body. This causes the skin, sclera and cartilage to become darker, while uronic acid causes hyperpigmentation of cartilage and other connective tissues, and degenerative arthritis of the spine and peripheral large joints. On the other hand, urinary black acid is excreted in urine, where it is alkalized and oxidized to make the urine darker, so it is also called black aciduria. This disease is a rare genetic disease and is rare. What are the dietary considerations for ear, nose and cartilage turning blue? Patients are advised to eat foods containing sulfur; foods containing histidine; foods rich in vitamins; avoid eating cold foods; avoid eating into spicy and stimulating foods; avoid eating seafood; avoid eating iron or complex vitamins containing iron. Foods to be eaten Kelp: foods rich in calcium and vitamin D are good for disease recovery and treatment. Kelp is a tasty food that can be served cold or in soup. Soak it in water for 2-3 hours before cooking, changing the water several times in between. Lean meat: food containing sulfur, eggs are sweet in taste; flat in nature. It belongs to the lung; spleen; stomach meridian. Can be eaten daily for breakfast. Hard-boiled eggs are the best way to eat them, but be careful to chew and swallow them slowly, otherwise absorption and digestion will be affected. Strawberry: A food rich in antioxidants, strawberry is sweet and sour, cool in nature, and belongs to the lung and spleen meridians. It is conducive to recovery from cervicitis. Rinse constantly with tap water. The flowing water prevents pesticides from seeping into the fruit. Consume in between meals. Avoid food Mung bean soup: cold food that may make arthritis worse. It must be avoided, but can also be consumed in moderation and in small amounts. Shrimp: cold, salty, and belongs to the liver and stomach meridians, which may aggravate the symptoms of arthritis. Oysters: Oysters contain a certain amount of blood uric acid, which, when absorbed by the body, can form uric acid crystals in the joints, which can aggravate the symptoms of arthritis.