
Nails that curve far inward at the sides are called ingrown nails. This condition may affect the toenails and be due to wearing shoes that are too tight, trimming toenails too short, or even keeping your nails in water for too long. Ingrown nails may also be caused by fungal infections, which cause nails to thicken and turn yellow, sometimes requiring oral or topical antifungal medication. In some cases, treatment may involve removing part or all of the nail. If you are in pain or experiencing recurring infections, your doctor may remove part of your ingrown toenail through a procedure called partial nail avulsion.
| Characteristics | Values |
|---|---|
| Medical name | Onycholysis |
| Cause | Injury to the nail or nail matrix, fungal infection, reaction to chemicals in nail products, or regularly going to a nail salon |
| Treatment | Cut away the separated nail, take oral or topical antifungal medication, stop using certain nail products |
| Prevention | Keep nails trimmed short, avoid biting nails, be careful when cleaning underneath nails, avoid chemicals or products that can irritate nails or surrounding skin |
| Type of nail | Ingrown nail, or nail that curves far inward at the sides |
| Cause of ingrown nail | Wearing shoes that are too tight, cutting nails improperly, trimming toenails too short |
| Treatment for ingrown nail | Remove part or all of the nail, surgery to eliminate nail edge from growing inward |
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What You'll Learn
- Causes: Ingrown nails may be due to wearing tight shoes or improper cutting
- Prevention: Keep nails short, avoid biting them, and be careful when cleaning under them
- Treatment: Doctors can remove part or all of the nail, or prescribe medication
- Onycholysis: A nail condition where the nail separates from its nail bed
- Health: Curved nails can indicate underlying health issues, such as iron deficiency

Causes: Ingrown nails may be due to wearing tight shoes or improper cutting
Ingrown nails are often caused by wearing tight shoes or improper cutting.
Tight shoes can cause ingrown nails by exerting pressure on the toes, forcing them to grow in an abnormal direction. This pressure can also lead to other issues such as corns, calluses, and blisters. Shoes that are too tight can be especially problematic for children and young adults who are still growing, as their feet may be more sensitive and prone to damage. Athletic shoes and dress shoes are common culprits, as people may outgrow them before they wear them out.
To prevent ingrown nails caused by tight shoes, opt for roomier shoes that fit well and allow your toes to move freely. Sandals or other low-heeled open-toed shoes are ideal, as they give your toes ample space and reduce the risk of bacteria growth due to trapped moisture. If you must wear closed-toe shoes, ensure they have a spacious toe box. Additionally, be mindful of any signs of tight shoes, such as foot pain, redness around the ankles, or toenails growing into the flesh.
Improper nail cutting can also lead to ingrown nails. Cutting toenails too short, especially at the corners, can cause the nails to grow into the surrounding skin. To prevent this, trim your nails straight across, following the natural curve of your toe tips, and avoid rounding the corners. This helps guide the nails to grow above the skin edge.
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Prevention: Keep nails short, avoid biting them, and be careful when cleaning under them
Ingrown nails are a common issue that can affect both toenails and fingernails. This condition occurs when the nail grows into the nail fold, causing damage to the skin. To prevent ingrown nails, it is important to maintain proper nail care and avoid certain behaviours that can contribute to the problem. Here are some detailed tips to help you keep your nails healthy and prevent ingrowing:
Keep your nails trimmed short:
Nails that are too long have a higher chance of curving and growing into the surrounding skin. By keeping your nails short, you reduce the risk of ingrowth and the associated discomfort and infection. Aim to trim your nails regularly, but be careful not to cut them too short, especially on the sides of your big toes. Cutting your nails too short can also lead to ingrown nails.
Avoid nail biting:
Nail biting is a common habit, but it can have negative consequences for nail health. When you bite your nails, you create an opportunity for the edges of your nails to grow into the surrounding skin. Additionally, nail biting can introduce bacteria into any existing nail wounds, increasing the risk of infection. Breaking the habit of nail biting can improve the appearance and health of your nails.
Be careful when cleaning under your nails:
Maintaining clean nails is important, but it's crucial to do so safely. Be gentle when cleaning underneath your nails to avoid breaking the skin. Avoid using sharp objects or applying excessive force, as this can lead to injury and increase the risk of infection. Instead, opt for soft tools designed for cleaning nails, such as nail brushes with soft bristles or gentle cuticle sticks.
In addition to these preventative measures, it's important to choose comfortable footwear that isn't too tight or restrictive. Ill-fitting shoes can contribute to ingrown nails, especially in the big toes. If you notice persistent ingrown nails or any signs of infection, it's recommended to consult a healthcare professional for further advice and treatment options.
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Treatment: Doctors can remove part or all of the nail, or prescribe medication
Ingrown toenails are a common foot problem, usually affecting the big toe. They can occur when the toenail is cut too short or rounded, causing the nail to curve with the shape of the toe and grow into the skin. While ingrown toenails don't usually pose a health risk, they can become inflamed, painful, and
If you have a severe ingrown toenail, it's best to see a healthcare provider. They may numb your toe and trim or remove the ingrown portion of the nail. In some cases, they might also remove a part of the underlying tissue (nail bed) to prevent that section of the nail from growing back. This procedure is known as a partial nail avulsion, and it involves cutting and removing a narrow vertical strip of the nail from the edge to the base. A chemical called phenol may be applied to the nail matrix to prevent regrowth.
For recurrent ingrown toenails, more extensive nail removal may be necessary. A permanent ingrown toenail removal procedure can be performed with the help of a chemical to kill the nail root. This ensures that the ingrown toenail doesn't grow back.
In most cases, ingrown toenails can be treated at home with simple remedies. Soaking the affected foot in lukewarm water two to four times a day for 10 to 20 minutes can help. Adding Epsom salts is optional. After soaking, placing fresh bits of cotton or waxed dental floss under the ingrown edge can help the nail grow above the skin. Applying petroleum jelly to the tender area and bandaging the toe can also aid in the healing process.
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Onycholysis: A nail condition where the nail separates from its nail bed
Onycholysis is a common nail disorder where the nail plate separates from the nail bed. It typically affects one nail, although it can affect multiple nails. The condition usually occurs after an injury to the nail or nail matrix, but it can also be caused by fungal infections, certain skin conditions, or reactions to chemicals in nail products.
The nail may appear white, yellow, or green, and it may show white spots and streaks. The nail surface may also be pitted, indented, or crumbly. Onycholysis can be a sign of a more serious condition, so it is important to seek medical advice if you are concerned or if you experience other symptoms.
There is no cure for the detached section of the nail, and it will not reattach. Treatment focuses on keeping new nail growth attached to the nail bed. This involves trimming the nail and keeping it short to prevent it from catching on objects and pulling further off the nail bed. It is also important to avoid biting your nails and to be careful when cleaning underneath them, as tools like cuticle sticks and nail brushes can break the skin and cause infection.
To prevent onycholysis, it is recommended to avoid trauma to the nail and nail bed, irritants such as nail products and chemicals, and moisture. Wearing gloves, including light cotton gloves under vinyl gloves for wet work, can help protect the nails. If the onycholysis is caused by a fungal infection, oral or topical antifungal medication may be prescribed.
The recovery time for onycholysis varies depending on the nail growth rate, which is typically slow. Fingernails can take around 4 to 6 months to fully regrow, while toenails can take twice as long.
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Health: Curved nails can indicate underlying health issues, such as iron deficiency
While changes in nail colour, texture, or shape can sometimes be harmless, they can also indicate underlying health issues. Curved nails, also known as nail clubbing, can signal various health conditions, including iron deficiency and more severe ailments.
Nail clubbing is a condition where nails become curved, widened, spongy, or swollen, resembling upside-down spoons. It often goes unnoticed as the curving progresses gradually. As the condition advances, fingertips may swell, and nails may feel spongy to the touch. While some people inherit this trait, it can also indicate underlying diseases, particularly affecting the heart and lungs.
Nail clubbing has been associated with lung cancer, lung infections, interstitial lung disease, cystic fibrosis, and cardiovascular disease. Additionally, digestive conditions such as Crohn's disease, celiac disease, and other inflammatory digestive disorders can lead to nail clubbing. Treating the underlying cause may help nails regain their normal shape.
Underlying iron deficiency can also cause curved nails, resulting in a condition called koilonychia. This condition is characterised by thin, spoon-shaped nails that dip down in the middle. Ensuring adequate iron intake through diet or supplements can help address this issue.
It is important to consult a dermatologist or healthcare provider if you notice persistent nail changes, including curved nails. They can help evaluate the cause and provide appropriate treatment or referrals. Additionally, maintaining nail hygiene, avoiding biting nails, and refraining from using harsh chemicals on nails are essential for nail health.
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Frequently asked questions
Ingrown nails occur when the skin on one or both sides of a nail grows over the edges of the nail, or when the nail itself grows into the nail fold, causing damage to the skin.
Ingrown nails can be caused by trimming your toenails too short, especially on the sides of your big toes, or by wearing shoes that are too tight. They may also be caused by underlying health issues such as iron deficiency anemia or fungal infections.
Treatment for ingrown nails may involve trimming the nail, taking oral antifungal medication, or applying topical antifungal medication. In more severe cases, surgery may be required to remove part or all of the nail.
To prevent ingrown nails, it is important to keep your nails trimmed short and tapered at the corners to follow the natural shape of your toe. Avoid wearing shoes that are too tight, and be careful when cleaning underneath your nails to avoid causing injury or introducing chemicals or bacteria.










































