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Doctor insights on: Horizontal Toenail Ridges

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My toenails have horizontal ridges on them. Seem broken in the middle. Been like this for more than 10 years. Now a curved white line too.

My toenails have horizontal ridges on them. Seem broken in the middle. Been like this for more than 10 years. Now a curved white line too.

Have them seen.: Nail problems of a long duration are very difficult to treat or even recommend treatment without actually examining them. It is without doubt, best to have them examined by someone who specializes in the treatment of nail diseases. ...Read more

Dr. Arnold Beresh
340 doctors shared insights

Toenails (Definition)

Toenails are the hard coverings at the end of the toes. Nails are made out of a protein called keratin. They function to protect the end of the toe and to increase sensitivity of touch. Good nail care is important to prevent ...Read more


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24 year old male. Horizontal ridging in toenails. Nail feels a bit rough. Mainly in big toe and toe next to big toe. Fingernails not affected. Normal?

24 year old male. Horizontal ridging in toenails. Nail feels a bit rough. Mainly in big toe and toe next to big toe. Fingernails not affected. Normal?

Usually: They're called Beau's lines. May occur from temporary cessation in toe nail growth. Eg trauma. In cases of malnutrition they can also be found. But if you're otherwise healthy, they are normal. ...Read more

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What does it mean if you have horizontal ridges on your big toenails?

What does it mean if you have horizontal ridges on your big toenails?

Usually a sign of: An injury, often a minor injury that you may not even recall. Transverse lines usally are similar to rings on a tree--you can identify approximately about when the injury occurred by how much the nail has grown. ...Read more

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I have horizontal ridges on my toenails. Is this normal?

I have horizontal ridges on my toenails. Is this normal?

A record of health..: Horizontal ridges, as opposed to vertical ridges, could represent a significant change in your over all health. They form for many reasons and can have several different looks. Anything that affects the nail root and its production of normal nail may be responsible. This could include trauma, diet, fever, medications and some systemic disorders. To remove all doubt, consult a specialist. ...Read more

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Back in the Fall I experienced intense gastro pain and at that time I started getting horizontal ridges in my left big toenail. What can cause this?

Back in the Fall I experienced intense gastro pain and at that time I started getting horizontal ridges in my left big toenail. What can cause this?

?vitamin deficiency: It is difficult to say right now what caused you pain in the Fall (I might need more information regarding the pain). The horizontal and sometimes white ridges could be a sign of vitamin deficiency. ...Read more

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My daughter has a slight horizontal ridge on one toenail and it doesn't hurt nothing happened to the area what could it be?

My daughter has a slight horizontal ridge on one toenail and it doesn't hurt nothing happened to the area what could it be?

Time Line.: The nail plate is, in a way, a crude calendar of events regarding the history of the toe. That line, depending on it's position on the toe, indicates that something happened to influence the nail root. This typically is in the form of an injury. Understand that the injury doesn't necessarily have to be a traumatic event full of pomp and circumstance. It could be as subtle as a tight shoe. ...Read more

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Horizontal ridges on both big toenails. Nail peeling. Doc doesn't think it's fungus because no discolor. No injury. Ideas?

Horizontal ridges on both big toenails. Nail peeling. Doc doesn't think it's fungus because no discolor. No injury.  Ideas?

Dryness or other: Could be just drying or iron deficiency or other pathologies. If it is or isn't fungus, your doctor can get a culture/specium to confirm whether it is or not. Try to see aobut your diet as well as lack of certain vitamins and minerals can be seen first in toenails/fingernails and or hair. Good luck. ...Read more

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I have had this awful chronic (well, many years) horizontal ridging on my second toenails . The cuticle is misshapen also. Causes/cures?

I have had this awful chronic (well, many years) horizontal ridging on my second toenails . The cuticle is misshapen also. Causes/cures?

Probably trauma: Repetitive trauma against the second toe from shoegear can cause this. Most times this toe is longer than the two toes in both sides and it will rub or bang against the shoe more than the others causing nail and skin thickening. It could also be dry skin or even heredity. ...Read more