Human nails are important health sentries. It can be said that they always remind you of your health. Different colors, stripes and shapes can show different conditions of the body, so it is helpful for us to know more about nails for better self-examination. So what do you mean by uneven nails? This article will explain this situation in detail for you. This is because people's the twelve meridians will be within reach. Normal people's nails are smooth, translucent or even reddish, with a set arc at the tip and a January-shaped gray nail arc at the root. Once the body has symptoms, it will be reflected on the nails through nerves, blood vessels, meridians, etc., resulting in abnormal changes in the shape and color of nails. Nail shape and disease: 1, the nail bulges and extends into the finger flesh, symbolizing the possibility of chronic respiratory diseases, such as emphysema, tuberculosis and cardiovascular diseases. 2, nail stripes are disordered, showing dark brown, which is a reaction of dehydration and early kidney deficiency. 3, nails appear horizontal stripes, which may be a sign before myocardial infarction, but also related to measles and mumps. 4, flocculent white clouds appear on the nails, which is often a sign of ascaris. 5, vertical lines appear on the nails, mostly caused by lack of vitamin A. 6, partial nail fall off, indicating metabolic disorder. 7, nails flat, sunken into a spoon, dull and fragile, mostly caused by iron deficiency anemia. 8. The nail suddenly thickens and peels around the nail, indicating that there may be a tumor in the respiratory tract or digestive tract. 9, the middle of the nail is sunken, and the whole nail becomes flat or spoon-shaped, which is often related to anemia, syphilis, thyroid disease, rheumatism and so on. 10, irregular pits appear on nails, which is a common problem of many psoriasis patients. 1 1, rows of nails appear concave holes, which are often caused by tufting baldness. 12, nail bulge rolled into finger meat, chronic respiratory diseases. Nail is a kind of horny structure, which consists of many layers of firmly connected keratinocytes, which are filled with keratin filaments. Therefore, foods rich in protein and calcium are the basic elements to keep nails healthy, smooth and shiny. In addition, zinc, potassium and iron, vitamin A and vitamin B are also very important for the growth of nails, so nails can reflect the nutritional status of the human body. If the intake of vitamins, calcium and other nutrients is insufficient, the nail surface will be uneven, uneven and dull. It is not ideal to measure a person's health by looking at his nails. A person must be well nourished before his nails can grow normally, otherwise there will be some abnormal phenomena, which doctors can often use to diagnose important diseases. Here are some nail anomalies: 1. Puzzle-like swelling: nails are obviously arched upwards and bent around fingers. Clubbed fingers may mean emphysema, tuberculosis, cardiovascular disease, ulcerative colitis or cirrhosis. 2. Blue crescent: If there is a layer of blue halo on the crescent-shaped white mark at the root of the nail, it means that you may have any of the following diseases: blocked blood circulation, heart disease, Raynaud's sign, vasospasm of fingers and toes, usually due to freezing. But sometimes it is also related to rheumatoid arthritis or autoimmune disease lupus erythematosus. 3. Spoon nails: the middle of the nails sinks, and the whole nails become flat or spoon-shaped. This kind of nail is related to iron deficiency anemia, syphilis, thyroid disease, rheumatic fever and so on. 4. Lindsay's nails: half of the nails near the tip of the nails are pink or brown, and half of the nails near the nail shape are white. This kind of nail is also called two nails, which may be a sign of chronic renal failure. 5. Bo's line: the horizontal groove on the nail indicates malnutrition or some serious disease that will temporarily affect the growth of the nail, such as measles, costalitis, heart disease, etc. 6. Terry's nails: Most of the skin under the nails turns white, and only a small part near the nail tip is still normal pink. This may indicate cirrhosis. 7. yellow nail comprehensive collection group: the growth rate of nails is slow, thicker and harder; It is yellow or green, and the causes include chronic respiratory diseases, thyroid diseases or lymphatic diseases. 8. Bleeding: If these vertical red lines appear on the nails, it means microvascular bleeding. If there are multiple such blood lines, it may indicate chronic hypertension, psoriasis or a fatal infection called subacute bacterial endocarditis. 9. Irregular pits: Many patients with psoriasis have this phenomenon. 10. Rows of pits: The nail surface becomes the bronze surface hammered out by the coppersmith, sometimes because of tufting baldness. This is an immune disease that is not well understood by the medical community, which will lead to partial or total hair loss. 1 1. Brown spots or dark spots: This kind of spots, especially those where nails extend to the surrounding finger tissues, may indicate melanoma. They may be a single big block or a bunch of small spots, and the most common places are the thumb and big toe.