What tests should be checked for itchy skin?

If your skin is itchy, you should of course pay attention to understanding what is causing it. Because common eczema, urticaria and neurodermatitis can cause itchy skin, it is necessary to do some tests, such as routine blood tests and routine urine tests.

1. Three major routines: these are the must-do inspection items. Blood routine test: Itching caused by urticaria may be accompanied by increased eosinophils in the blood routine test. In acute bacterial infection, the total white blood cell count and neutrophil granulocytes increase. The total white blood cell count may also increase in allergic itching caused by drugs. Urinalysis: rule out skin itching caused by urinary system diseases and abnormal bile excretion.

2. Complement: If it is allergic itching, some symptoms may be reduced serum complement.

3. Cryoglobulin: The itching of cold urticaria can be treated by testing cryoglobulin and the ice cube test can help with diagnosis.

4. Allergen testing: Cholesterol urticaria generally tests positive for exercise (sports food) and hot water. Artificial measles skin scratch test was positive. Light, heat tests, and food elimination tests are helpful in diagnosing solar urticaria and those caused by food allergens.

5. Skin patch test: If it has been confirmed that the itching is caused by contact with a certain allergen, a skin patch test can be done. 6. Histopathological examination: All kinds of wheals can be examined by histopathological examination as appropriate.

6. Blood sugar (blood sugar food): The skin itching of people with early diabetes (diabetes food) is divided into systemic or localized. The site of the disease is not fixed, and the degree of the disease is also inconsistent, but it generally occurs in the vulva, scrotum and other parts, especially the vulva itching of women (female food) is more common. At the same time, the skin itching caused by diabetes is very uncomfortable, and most of the time it will recur. Some patients will suffer skin breakage and bleeding after scratching because of the unbearable itching. Due to repeated scratching, scratches and blood scabs are common on the skin, which may develop into dermatitis. After a long time, the skin will harden and pigmentation will be deposited. Some patients may also have dry and flaky skin. Therefore, when you experience unexplained skin itching, don't forget to check your blood sugar.

7. Liver and kidney function: Some liver and kidney diseases can also cause skin itching. After doing the above examinations, if the causes are found, they should be treated accordingly. While undergoing treatment, daily care measures should also be taken.