Distinguish between disease and skin color
(1) Pale and bloodless-probably suffering from anemia.
(2) Yellow skin-the manifestation of hepatitis, liver cirrhosis, biliary obstruction or hemolytic anemia.
③ Uniform and dark skin-related to chronic diseases such as adrenal diseases, chronic nephropathy and Addison's disease.
(4) flushed face-manifested as high blood lipid and blood pressure.
⑤ The skin is dull and dull-beware of excessive psychological pressure.
2. Differentiate diseases from skin papules
① Brown papules, plaques or plaques (generalized xanthoma plana) appear on the face, trunk and limbs-50% may be related to multiple myeloma, and some may be related to elevated blood lipids.
② Repeated wheals appear on the skin, accompanied by itching (chronic urticaria)-some are related to Helicobacter pylori infection in the stomach, some are related to hepatitis B virus carriers, and some are even related to chronic cholecystitis, rheumatic diseases and dental caries.
(3) When the skin encounters cold air or cold water, it will be red, swollen and itchy (cold urticaria)-related to cryoglobulinemia or multiple myeloma.
(4) papules, nodules and erosions appear on the skin, which is neither painful nor itchy (cutaneous cryptococcosis)-cryptococcosis may exist in the brain or lungs.
⑤ blisters, blisters and papules grow on the skin, accompanied by oral erosion (skin bullous disease)-often paraneoplastic blister sores, which are related to lung, abdomen and gynecological tumors.
3. Differentiate diseases from patches and nodules of the skin.
① There are tan nodules or plaques (verrucous palpebral margin) on eyelid skin-there may be hyperlipidemia.
2 there are butterfly spots on the face, and the sun is aggravated-the probability of suffering from systemic lupus erythematosus is high.
(3) purplish red, infiltrating (slightly thick) erythema appears on the face and around the orbit-dermatomyositis may change. Many dermatomyositis over 40 years old is related to tumors, especially nasopharyngeal carcinoma. If you closely follow the changes of the skin, you can find the tumor four or five months earlier.
(4) Flame-like erythema in the chest-carcinoid syndrome or dermatomyositis, suggesting that there may be tumors in the digestive system, gynecology, male genitourinary system or lungs.
⑤ There are greasy patches, scabs and itching on the forehead, brow and nasolabial groove, which are serious all over the chest, armpits and groin (severe seborrheic dermatitis)-often related to AIDS.
6 Kaposi's tumor, a purplish red and dark red lump on the skin, is often in the late stage of AIDS.
⑦ There are some nodules or abscesses similar to erythema nodosum on the skin-Crohn's disease, that is, chronic ulcerative colitis.
8 There are many dark red or normal skin nodules on the skin, which are neither painful nor itchy, accompanied by fever-beware that skin metastasis may be leukemia.
4. Differentiate diseases from acne, moles and other skin symptoms.
① Women still have acne, thick hair, many beards and irregular menstruation after puberty-there may be polycystic ovary syndrome.
② There are moles on the lips, especially on the lower lip-usually accompanied by intestinal polyps, which is pigmented intestinal polyp syndrome.
③ Patients with chronic diseases have a large number of white spots or plaques (thrush) in their mouths-at the same time, there may be candida infection in their lungs or viscera.