"Lunula." It's the crescent shaped whitish area of the nail bed of a fingernail or toenail.
It is located at the end of the nail that is closest to the skin of the finger but still lies under the nail. It is not actually white but only appears so when seen through the nail.
The actual size of the lunula does not correlate with disease or health.The lunula size can differ between individuals and is not a cause for concern. The lunula may disappear in the presence of poor nutrition with protein deficiency and with chronic diseases, such as liver cirrhosis, heart failure, diabetes, tuberculosis, rheumatoid arthritis, and multiple sclerosis.
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It is recommended that all individuals see a Family Doctor for a full medical examination annually. Adults should get their blood pressure checked (US Preventive Task Force), a flu vaccine (CDC) and more each year.
The American Dental Association recommends dental cleanings for adults at least twice annually. Some stains can only be removed by a professional cleaning.
It’s recommended by the American Academy of Ophthalmology that every adult between the ages of 18 and 80 does an eye examination at least once every two years.
It's recommended by the American Cancer Association that every adult between the age of 20 and 80 does an annual skin screening by a licensed dermatologist.
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