Ridges in Fingernails: Symptoms, Causes, and Treatments (2024)

Your fingernails could have ridges for many reasons, ranging from stress to kidney and thyroid disease. Ridges in fingernails are usually harmless.

Your fingernails can reveal a lot about the state of your health. One common change is the appearance of vertical or horizontal ridges. Learn more about why ridges in fingernails appear and what they can mean.

Vertical ridges are furrows that run from the tip of your fingernail down to the cuticle. They are sometimes called longitudinal striations or bands.

According to 2015 research, slight vertical ridges in fingernails often develop in older adults, possibly due to a slowing of cell turnover. This is when new skin cells produced below the surface of your skin rise up to take the place of discarding dead cells from the surface.

If you experience other symptoms like texture changes in your nails, it may be caused by a medical condition. In trachyonychia (twenty-nail dystrophy), the ridges may look shiny or brittle.

Iron deficiency anemia can also trigger vertical ridges and changes to your nails that make them concave or spoon-shaped.

Deep horizontal ridges, called Beau’s lines, are often symptoms of a serious condition, according to 2018 research. They may actually stop nail growth until the underlying condition is treated. Acute kidney disease may also be present if Beau’s lines appear.

According to the 2015 research mentioned earlier, when Beau’s lines develop on all 20 nails, it could be a symptom of:

  • mumps
  • parathyroid disease
  • unmanaged diabetes
  • syphilis
  • respiratory conditions
  • illnesses that cause prolonged high fevers
  • zinc deficiency

Chemotherapy may also cause Beau’s lines.

Trauma to your nails can cause red or brown spots to form underneath your nails. If you notice dark brown, black, or red color changes under your nails and haven’t experienced nail trauma, it may be a symptom of a more serious condition, like endocarditis or melanoma.

A doctor should examine changes in your nails. If you damaged your nail in an injury, you may wait to see how the nail and your finger heal for a few weeks before deciding whether to see a doctor.

However, you should see a doctor as soon as possible if the injury results in:

  • a clean or ragged cut through your nail
  • a crushed nail
  • a nail that is torn off
  • bleeding under your nail

During your appointment, your doctor will examine your nails and ask about any other symptoms you’re experiencing.

Your doctor may order urine and blood tests if they suspect kidney disease, diabetes, or nutritional deficiencies.

If it seems like the ridges are the result of a skin condition, a dermatologist can start you on a treatment plan.

If the cause of your fingernail ridges is unclear, your dermatologist may take some fingernail clippings to have them analyzed in a lab for signs of infection.

Because fingernail ridges are often signs of other health problems, treatment focuses on the underlying cause of the changes to your nails. For example, if you have developed Beau’s lines because of diabetes, successfully managing your blood sugar may reduce these horizontal fingernail ridges.

Treatment for skin conditions like eczema may include moisturizers for your hands or topical ointments to reduce eczema symptoms. If low levels of minerals or vitamins are to blame, you may be advised to alter your diet or take supplements to boost your levels.

Ask a dermatologist for advice on treating your nails. You’ll want to be careful not to cause further damage.

You can connect to a dermatologist in your area using the Healthline FindCare tool.

Most of the time, ridges in fingernails are a typical sign of aging. However, it’s important to pay attention to fingernail ridges and other nail changes. These might be the first signs of a serious medical problem.

What do ridges in your nails mean?

Ridges in your nails are usually harmless but can mean different things. Vertical ridges are often an indication of aging. Horizontal ridges can point to issues like malnutrition, serious nail injury, or even Beau’s lines.

What causes ridges in nails?

Ridges in nails usually come from aging but can also indicate improper nail care, nail trauma, vitamin deficiency, or even a more pressing medical condition, according to 2022 research.

Do deficiencies cause ridges in nails?

Vitamins that can help with nail health include iron, zinc, vitamin A, vitamin C, and vitamin D. According to 2018 research, biotin is also highly recommended to aid in nail health, but more research is still needed to understand the actual benefits.

Can you buff out ridges in nails?

Some dermatologists suggest you can gently buff nails to remove ridges. However, it’s recommended to stick with moisturizing your nails, keeping them trimmed, and checking with a dermatologist for further consideration.

Ridges in the fingernails are usually signs of aging. Slight vertical ridges commonly develop in older adults.

In some cases, ridges may be a sign of health problems like vitamin deficiencies or diabetes. Deep horizontal ridges, called Beau’s lines, may indicate a serious condition.

Ridges in Fingernails: Symptoms, Causes, and Treatments (2024)

FAQs

Ridges in Fingernails: Symptoms, Causes, and Treatments? ›

What deficiency causes ridges in nails? Vitamin deficiencies , such as iron, folic acid, or protein deficiency, can contribute to ridges in nails. A deficiency in vitamins A, B, C, D, E, zinc, and selenium may also present as brittle nails.

What is my body lacking if my nails have ridges? ›

What deficiency causes ridges in nails? Vitamin deficiencies , such as iron, folic acid, or protein deficiency, can contribute to ridges in nails. A deficiency in vitamins A, B, C, D, E, zinc, and selenium may also present as brittle nails.

What vitamin gets rid of nail ridges? ›

Vitamin D. Vitamin D is necessary for the absorption of calcium, which maintains healthy bones. If your nails are peeling, brittle, or have vertical ridges, you may be vitamin D deficient. Dubbed “the sunshine vitamin,” one of the best sources is sunlight.

How can I fix the ridges in my fingernails? ›

Buff your nail's surface—but do so gently! When prepping your nails between manicures, use a gentle nail buffer to help smooth away bumps. Light exfoliation (using Soft Touch Nail Scrub) will help, too. Use a glass nail file to shape and refine.

What autoimmune disease causes vertical ridges in fingernails? ›

RA doesn't just attack your joints and cause pain, swelling, and stiffness throughout the body—it can also lead to certain nail changes like yellowing, ridging, curving, and hemorrhages that appear as red spots.

What do B12 deficiency nails look like? ›

Nail changes in vitamin B12 deficiency present as hyperpigmentation of nails like bluish discoloration of nails, blue-black pigmentation with dark longitudinal streaks, and longitudinal and reticulate darkened streaks.

What do nails look like with heart problems? ›

In the condition called Terry's nails, most of the fingernail looks white except for a narrow red or pink band at the top. Terry's nails sometimes develops because of aging. But in other cases, it may be a symptom of a serious medical condition, such as liver problems, congestive heart failure or diabetes.

Does magnesium help nail ridges? ›

Magnesium helps prevent ridges in the nails and with protein synthesis and new nail formation. Magnesium deficiency can be corrected by including whole grains such as whole wheat, quinoa, and almonds, cashews, peanuts, black beans in your diet.

What does zinc deficiency look like in your fingernails? ›

Zinc is an essential mineral for cell multiplication and protein absorption, functions that are important for thick, lustrous hair. White spots on the nails - sometimes called Beau's lines - are one of the important signs of a zinc deficiency. Nails can grow slowly, become brittle and break easily.

Can nail ridges be reversed? ›

Some dermatologists suggest you can gently buff nails to remove ridges. However, it's recommended to stick with moisturizing your nails, keeping them trimmed, and checking with a dermatologist for further consideration.

Are nail ridges reversible? ›

Things like picking your nails, jamming the cuticle back, or getting your finger caught in the door can cause a dent in the “conveyor belt,” so future nail plates are “produced” with a ridge, she explains. But don't fret: The ridges aren't permanent, and once they grow out, your nails will be back to business as usual.

What do liver failure nails look like? ›

Terry's nails is a type of nail discoloration. The nailbeds look “washed out,” except for a thin reddish-brown strip near the tip. Often, Terry's nails is a symptom of a chronic condition, such as liver failure or diabetes. Sometimes, it is a sign of aging.

What do fingernails look like with lupus? ›

Lupus Symptom: Nail Changes

Lupus can cause the nails to crack or fall off. They may be discolored with blue or reddish spots at the base. These spots are actually in the nail bed, the result of inflamed small blood vessels. Swelling may also make the skin around the base of the nail look red and puffy.

What are the symptoms of lupus fingernails? ›

Nail changes

These are most common in people who have systemic lupus erythematosus (SLE). Some people develop a nail infection, which can cause splitting or crumbling nails and discoloration (A), or swollen skin and discoloration around the nails (B). Sometimes, visible blood vessels appear around the nails.

What is Raynaud's syndrome nail ridges? ›

Raynaud's phenomenon is a disorder, causing discolouration of the fingers. It is thought to be related to vasospasm. It can also affect the toes and other areas. The nails become brittle with longitudinal ridges.

What does vitamin D deficiency look like in nails? ›

Hapalonychia (soft nails) has been associated with deficiencies of vitamins A and D among other causes. Longitudinal melanonychia of the nail plate has been reported in vitamin D deficiency.

What do iron deficiency nails look like? ›

Koilonychia is an abnormal shape of the fingernail. The nail has raised ridges and is thin and curved inward. This disorder is associated with iron deficiency anemia. Leukonychia is white streaks or spots on the nails often due to drugs or disease.

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