What does a crescent-shaped fingernail mean?

According to the principle of manual diagnosis of traditional Chinese medicine, the white crescent part at the root of the fingernail is called a half-moon mark. It is a scale indicating whether the human body is energetic. The more energetic the half-moon mark is, the whiter it is and the larger the area. Generally, the thumb of young people is The half-moon mark is 1/5 of the nail, with a clear edge. As long as eight out of ten fingers have half-moon marks, it means that you are energetic. If the little finger also has half-moon marks, it means that you are very energetic. If the half-moon marks are reduced, you can supplement protein and black food. Such as black rice, black fungus, etc. Try to keep your body as strong as possible and exercise properly. How to measure health with nails It is not idealistic to measure a person's health by looking at nails. A person must have good nutrition so that nails can grow normally, otherwise there will be some abnormal phenomena, which doctors can often diagnose important diseases. The following introduces several abnormal nail phenomena: 1. Clubbing: The nail is markedly arched upward and curves around the finger. Nail clubbing may indicate emphysema, tuberculosis, cardiovascular disease, ulcerative colitis, or cirrhosis. 2． Blue Crescent: A crescent-shaped white mark at the base of a nail with a blue halo may indicate any of the following conditions: blocked blood circulation, heart disease, Raynaud's syndrome, vasospasm of the fingers and toes, usually Due to exposure to freezing. But it is sometimes associated with rheumatoid arthritis or the autoimmune disease lupus. 3. Spoon-shaped nails: The middle of the nail sinks and the entire nail becomes flat or spoon-shaped. This kind of nails is related to iron deficiency anemia, syphilis, thyroid disorders, rheumatic fever, etc. 4. Lindsay's nails: The half of the nail near the nail tip is pink or brown, and the half near the nail is white. This type of nail is also called a double nail and may be a sign of chronic renal failure. 5. Beau's lines: The appearance of horizontal grooves on the nails indicates malnutrition or a serious disease that will temporarily affect the growth of the nails, such as measles, costalitis, and heart attack. 6. Telley's nails: Most of the skin under the nail turns white, leaving only a small area near the tip of the nail that still appears pink. This may indicate cirrhosis of the liver. 7. Yellow Nail Syndrome: Nail growth slows down and becomes thicker and harder; it turns yellow or green. Causes include chronic respiratory disease, thyroid disease or lymphadenopathy. 8. Bleeding: If these vertical red lines appear on the nails, they indicate capillary bleeding. If multiple such blood lines appear, it may indicate chronic hypertension, psoriasis, or a fatal infection called subacute bacterial endocarditis. . 9. Irregular pits: Many psoriasis patients have this phenomenon. 10. Rows of pits: The surface of the nails becomes like the surface of copper hammered by a coppersmith, sometimes caused by alopecia areata. This is an immune disease of the body that is poorly understood by the medical community and can cause partial or complete hair loss. 11． Brown or dark spots: This type of discoloration, especially if the nail expands into the surrounding finger tissue, may indicate melanoma. They may appear as a single large patch or as a cluster of tiny spots, and they most commonly appear on the thumbs and big toes. Vertical lines on nails usually occur in two situations: The nail ridge deck is thin and brittle, with longitudinal ridge-like protrusions. The distal end is often broken and branched due to malnutrition. It can also be seen in diseases such as lichen planus and alopecia areata. of patients. The longitudinal groove of the nail typically has a longitudinal ridge in the center of the nail plate, and the top of the ridge is sunken into a shallow groove. It can also have no ridge and show a significant groove. It is often caused by damage to the nail matrix. It can also be seen in patients with diseases such as lichen planus. It is a manifestation of allergic reaction. In order to detect your disease in time, please always pay attention to your hands, it may be warning you. Nails and disease prediction The analysis of nails began in ancient times. Doctors of the Hispanic school advocated the nail analysis method, which is still used today, but most people don't know that small nails can truthfully reflect the health of the human body. The back of the nail bulges upwards very high, while the periphery of the nail curves down in an arc. Nails of this shape may indicate emphysema, tuberculosis, cardiovascular disease, ulcerative colitis, cirrhosis of the liver.

Punctate leukoonychia (one or several white spots of varying sizes or white cloud-like or white flocculent spots appearing on the deck) may indicate digestive system diseases, malnutrition, zinc deficiency, syphilis, etc. Red: Red nail bed indicates Qi and blood heat syndrome. If the nail bed is red and moist, the disease will be mild and mild. If the nail bed is red and withered, the disease will be severe and severe. Nail bed bleeding is also classified as red nail. If spindles appear on the free edge of the nail to form longitudinal linear bleeding, it can be seen in coagulation disorders, drug allergies, subacute endocarditis, etc. Yellow: The nail bed is yellow in color, indicating damp and heat fumigation. Yellow and bright, indicating mild disease and short course. Dark yellow indicates serious illness and long course of disease. Yellow nails can be seen in hepatobiliary diseases, hemolysis, hypothyroidism, chronic adrenal insufficiency, nephrotic syndrome, carotenemia, etc. Cyan: The nail bed turns blue, indicating cold syndrome, blood stasis, pain syndrome, and convulsions. Seen in hypoxia or the use of adipine and phenolphthalein. Green and haggard nails after a long-term illness indicate that the liver qi will disappear and the prognosis is poor. Black: Black nail bed, mainly cold syndrome, blood stasis, and pain syndrome. The appearance of black nails that are withered and dull due to long-term illness indicates that the kidney qi will be extinguished, and the disease is dangerous. The appearance of one or several thin and black vertical lines on the nail surface indicates endocrine disorders, which can be seen in menstrual disorders, dysmenorrhea, malignant tumors, radiation sickness, etc. After cancer patients undergo radiotherapy and chemotherapy, each course of treatment can form a black mark on the nail, recording each course of treatment in circles. Blue: Indicates that the liver is suffering from evil and blood stasis is blocked. Modern research has found that oral administration of chloroquine, adipine, hemochromatosis, hepatolenticular degeneration, nitrite poisoning, and hypoxia can cause blue armor. Brown nails: Common in acanthosis nigricans, adrenal insufficiency, or oral administration of phenolphthalein, antimalarial drugs, etc. Red and white on half nail: The distal end of the nail is reddish brown and the proximal end of the nail plate is glassy white with clear boundaries, which is common in cirrhosis and azotemia. Atrophic nail shape: People with this shape of nails have overly sensitive nerves and strong reactions to various stimuli, and often have clinical manifestations of malnutrition. Hypertrophic shape: People with this shape of nails often suffer from sensory insensitivity, are susceptible to limb paralysis, are susceptible to wind and cold, and often have a history of low back and leg pain. Long Shape: People with long nails are prone to respiratory and cardiovascular system diseases, such as tracheitis, pneumonia, tuberculosis, myocarditis, etc. Short nails: People with short nails are prone to coronary heart disease, diabetes, neurasthenia and other diseases. Triangular shape: The nail is narrow at the base and wide at the head. People with this shape of nails often have a history of headaches. Narrow shape: People with this shape of nails have poor physical constitution, but have strong disease resistance and tolerance. Olive-shaped: People with this-shaped nails are more likely to have atherosclerotic heart disease, high blood pressure, cerebral thrombosis, and are prone to brain tumors and myelopathy. Sector-shaped nails: People with this-shaped nails are prone to stroke, and are clinically more common in patients with hepatitis and cholelithiasis. Concave and horizontal line shape: People with this shape of nails may have parasitic diseases. Crooked and bent nails: The middle part of the nails is weak and there are horizontal lines on the nails. People with nails with this shape often suffer from hookworm disease, which indicates calcium deficiency, anemia or malnutrition in the body. The index finger is medium-high in shape: it is shaped like an animal's claws and is a sign of tuberculosis. Semi-circular: People with this-shaped nails often suffer from renal insufficiency. Cylindrical: Found in patients with advanced cancer. Flat-shaped nails: People with this-shaped nails are prone to lymphatic tuberculosis and throat diseases, such as pharyngitis, laryngitis, and acute suppurative tonsillitis. Vertical line shape: There are vertical lines on the nails and they are easy to break. People with this type of nails mostly have poor heart function or weakened intestinal peristalsis. There are more vertical lines on the thumb nails, which may be caused by a partial eclipse. Groove-shaped: Deep grooves on the nails indicate that people with this type of nails have a large number of internal parasites or have intestinal paralysis. Grooves on the thumb nails often lead to depression; grooves on the index fingernails are prone to skin rashes; grooves on the middle nails indicate myasthenia; grooves on the ring fingernails are prone to eye diseases; grooves on the little fingernails Concave grooves are prone to hepatobiliary diseases, pharyngitis, neuralgia, etc.