Ridges in the fingernails are often normal signs of ageing.
But slight vertical ridges might develop and in some cases it could indicate a health problem.
According to Dr Ross Perry of skin clinic chain Cosmedics, slight ridges are normal and can develop during the ageing process.
These can even indicate a vitamin deficiency or dehydration or as a result of a skin condition.
He said: "Nutritional factors such as deficiencies in vitamins such as Vitamin A, or if your body is low in protein or calcium then you may notice ridges.
"Severe iron deficiencies could also create ridges and other changes to the nails."
But Dr Ross warned it ridges come with discolouring it may be caused by a medical condition and you might need to go to the doctors.
He added: "Severe, deep ridges albeit rare could be a symptom of a more serious medical condition such as kidney disease and would need medical tests to determine the cause.
"Diabetes could also be the underlying health reason for this."
The expert also revealed how trauma to the nails can also cause defects such as ridges, so basically you shouldn't ever pick your nails.
But if you experience any changes to your fingernails, it's important to seek medical attention.
It's always important to keep an eye on your nails as sometimes they can indicate an underlying health condition.
Having white marks on your fingernails could be down to an allergic reaction or mineral deficiencies.
Fingernails that curve inwards can be worrying if adults experience them.
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"Spoon shaped nails" could also point to other problems, such as hemochromatosis.
If you are concerned about your nails, visit your GP for advice.
You can also get plenty of handy information on the NHS website.
The health service explains abnormalities in greater detail, as well as providing information about when to seek medical attention.
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