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Chapter 161 Examining Skin Color, Identifying Diseases

The color of the skin is closely related to the distribution of capillaries, the amount of pigment, and the thickness of subcutaneous fat.Generally, people of normal yellow race have rosy skin, but some diseases can change the color of the skin.So, sometimes a disease can be diagnosed from the color of the skin.

1. pale
Anemia patients often have varying degrees of pale skin and mucous membranes.Cold, panic, shock, or aortic insufficiency, etc., can cause spasm or insufficient filling of peripheral capillaries, causing pale skin.Diseases such as Raynaud's disease and thromboangiitis obliterans can also show pale extremities due to spasm or blockage of limb arteries.

2. Redness
In physiological conditions, it is seen during exercise and drinking; in disease conditions, it is seen in febrile diseases, such as lobar pneumonia, tuberculosis, and scarlet fever.

3. Cherry red
Nine times out of ten it is gas or cyanide poisoning.In patients with gas poisoning, their hemoglobin combines with carbon monoxide to form carboxyhemoglobin, which loses the ability to carry oxygen and causes hypoxia in the body.When carboxyhemoglobin reaches 30% to 40%, the patient's skin will be cherry red.

4. Dark purple
Dark purple skin is common in severe emphysema, cor pulmonale, cyanotic congenital heart disease, etc.

5. Brown or purple black
Most of them are nitrite poisoning. Vegetables such as cabbage, green vegetables, spinach, leeks and pickled pickles all contain more nitrate. After eating a lot, intestinal bacteria can reduce nitrate to nitrite. Nitrite is an oxidizing agent that can deprive the blood of oxygen, causing the hemoglobin to lose its oxygen-carrying capacity, resulting in tissue hypoxia, turning the low-iron hemoglobin into methemoglobin, and turning the blood brown or purple-black. The skin and mucous membranes of patients show Cyanosis.

6. Yellow dye
Excessive consumption of foods and beverages such as carrots, pumpkins, and orange juice can increase the content of carotene in the blood. When it exceeds 2500 mg/L, it can cause yellowing of the skin.Long-term use of drugs with yellow pigments such as adipine and furan drugs can also cause yellowing of the skin.

Correctly distinguish the degree and location of skin yellowing, you can identify whether you have a disease and the severity of the disease:

Excessive carotene content, skin yellowing occurs in the palms, soles, forehead and nose skin, generally does not occur in the oral mucosa.People with hemolytic jaundice often have a lemon-colored skin.Yellow-green or brown-green is often caused by persistent intrahepatic cholestasis, intrahepatic or extrahepatic biliary obstruction.Orange yellow is common in severe hepatitis.Progressive yellowing of the skin is mostly cancer of the head of the pancreas, cancer of the biliary system, or primary liver cancer.

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To make the face rosy and shiny, you should eat more blood-enriching foods such as red dates and fungus.Or make a soup with fungus and red dates. Do not eat seafood at the same time when drinking the soup, otherwise it will cause abdominal pain. In addition, the amount of red dates should not exceed 10 per time.

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