It depends on the direction of the nail ridges.Vertical nail ridges, which are fairly common, extend from the cuticle to the tip of your nail. They often become more numerous or prominent with age, possibly due to variations in cell turnover within your nail.If your fingernails change color or you develop horizontal nail ridges across your nails, talk to your doctor. These changes could indicate an underlying health condition.
http://www.mayoclinic.org/healthy-lifestyle/adult-health/expert-answers/nails/faq-20058541
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http://www.mayoclinic.org/healthy-lifestyle/adult-health/expert-answers/nails/faq-20058541
Learn about what the ridges in your fingernails can tell you about your health. Vertical nail ridges, which extend from your cuticle to the tip of your nail, are fairly common and often become more numerous or prominent as you age. Vertical ridges in your nails are not a health concern. Although the exact cause of such ridging isn't known, heredity likely plays a role.
http://www.empowher.com/nail-ridges/content/fingernail-ridges-barometer-your-health
Answers from Lawrence E. Gibson, M.D. It depends on the direction of the nail ridges. Vertical nail ridges, which are fairly common, extend from the cuticle to the tip of your nail. They often become more numerous or prominent with age, possibly due to variations in cell turnover within your nail.
http://www.mayoclinic.org/healthy-lifestyle/adult-health/expert-answers/nails/faq-20058541
Beau's lines should also be distinguished from Muehrcke's lines of the fingernails. While Beau's lines are actual ridges and indentations in the nail plate, Muehrcke lines are areas of hypopigmentation without palpable ridges; they affect the underlying nail bed, and not the nail itself. Beau's lines should also be distinguished from Mees' lines of the fingernails, which are areas of discoloration in the nail plate. There are several causes of Beau's lines. It is believed that there is a temporary cessation of cell division in the nail matrix.
https://en.wikipedia.org/wiki/Beau%27s_lines
The distinction should be made between horizontal ridges in nails and vertical ridges in nails. Vertical nail ridges are seen rather commonly and usually are not signs of serious illness. These ridges generally extend from the base of your fingernail to the tip in an orderly, regular fashion. On the other hand, horizontal nail ridges may indicate the presence of an underlying illness or medical condition, although this is not always the case. Horizontal nail ridges run from one side of the nail lengthwise across to the other side.
http://www.empowher.com/nail-ridges/content/fingernail-ridges-barometer-your-health
If your fingernails change color or you develop horizontal nail ridges across your nails, talk to your doctor. These changes could indicate an underlying health condition. With
http://www.mayoclinic.org/healthy-lifestyle/adult-health/expert-answers/nails/faq-20058541
Beau's lines. Beau's lines are deep grooved lines that run from side to side on the fingernail or the toenail. They may look like indentations or ridges in the nail plate. This condition of the nail was named by a French physician, Joseph Honoré Simon Beau (1806–1865), who first described it in 1846.
https://en.wikipedia.org/wiki/Beau%27s_lines
Beau's lines can also be seen one to two months after the onset of fever in children with Kawasaki disease. Human nails grow at a rate which varies with many factors: age, and the finger or toe in question as well as nutrition. However, typically in healthy populations fingernails grow at about 0.1mm/day and toenails at about 0.05mm/day.
https://en.wikipedia.org/wiki/Beau%27s_lines
Beau's lines. Beau's lines are deep grooved lines that run from side to side on the fingernail or the toenail. They may look like indentations or ridges in the nail plate.[1]:657 This condition of the nail was named by a French physician, Joseph Honoré Simon Beau (1806–1865), who first described it in 1846.
https://en.wikipedia.org/wiki/Beau%27s_lines
what do ridges on fingernails mean
Fingernails can tell you about your health. Vertical nail ridges, which extend from your cuticle to the tip of your nail, are fairly common and often become more numerous or prominent as you age.