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How Fast do Human Fingernails Grow?

Mary McMahon
Updated May 21, 2024
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The answer to this question is actually a bit complex. The rate of growth of human fingernails varies, depending on the person, the nail in question, and the time of year. As a general rule, human fingernails grow between 0.5 inches (1 cm) and 4 inches (10 cm) per year, and a number of things can influence this growth rate. Incidentally, fingernails grow approximately five times as fast as toenails, for those who are curious.

Among the many factors which influences the rate of growth is age. Younger people tend to grow their fingernails more quickly, especially if they eat healthy, varied diets. To improve the strength and appearance of fingernails, people can consume gelatin, which will help build thicker, stronger nails. Gelatin can also contribute to hair health, as well, although it will not significantly impact the rate of growth for human hair. Dietary imbalances can cause spotting or ridges on the nails, and an overload of certain toxins can also have an impact on nail growth and appearance.

One must also consider the finger when looking at the rate of nail growth. Longer fingers appear to grow nail material more quickly, as do the fingers on the dominant hand. On most people, the middle finger of the dominant hand grows a nail most quickly, while the thumb or pinky of the other hand has the slowest rate of nail growth.

Human fingernails appear to grow more quickly during the daylight, which means that they also grow more during the summer, when daylight hours are increased. As human fingernails grow, they can be shaped with trimming, a technique which can also be used to strengthen the edge of the nail by trimming away thin, ragged material on the nail and cuticle. Some people also like to oil their nails to keep them fully hydrated, or to use nail-strengthening solutions if they have especially thin or pitted nails.

Contrary to popular belief, human fingernails do not continue to grow after death. The illusion of growing fingernails is created by the dehydration which the human body experiences after death. As the body dehydrates, soft tissue starts to shrink and pull away, which can make it look as though the hair and fingernails have grown. The shrinking tissue can also expose the teeth, which explains why the dead appear to be grinning.

BeautyAnswered is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Mary McMahon
By Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a BeautyAnswered researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

Discussion Comments
By anon281891 — On Jul 25, 2012

I'm doing a beauty course and I have been given the following question: Why do fingernails grow 20 percent faster when you have the flu?

Can anyone help me out?

By anon173321 — On May 06, 2011

A good diet, plenty of protein, plenty of water, vitamin D, Calcium and other vitamins and minerals and very important, chemical free. This means mercury free. Remove all mercury fillings from your mouth by a mercury free, mercury safe dentist. You will have healthy nails and hair with improved health.

By anon168242 — On Apr 16, 2011

so is there a nail solution that you put on and it will make them grow faster? also, does nail polish slow down the process?

By anon70141 — On Mar 12, 2010

What is the first created empire in the world?

By carpusdiem — On Mar 06, 2010

Fingernails tend to grow better in summer, because more of the sunshine vitamin "vitamin D"

Also in dire need, like starvation, fingernail growth will cease.

Mary McMahon
Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a...

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