Home Health Tips HEALTH TIPS: Toenail fungus not generally a huge concern – Sarasota Herald-Tribune

HEALTH TIPS: Toenail fungus not generally a huge concern – Sarasota Herald-Tribune

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Fungal nail infections are common, especially among older adults. As nail growth slows with age, it’s easier for fungus to establish in the nail bed.

Treatments are available, although they may take some vigilance and are not always necessary.

Toenail fungus usually is caused by a microscopic organism called dermatophyte fungus. It often begins as a white or yellow spot under the tip of your toenail. But as the infection goes deeper, nail fungus may cause your nail to discolor, thicken and crumble at the edge. These fungal infections are more likely to happen in your toenails than in your fingernails because toenails often are confined in a dark, warm, moist environment, where fungi can thrive. Toes also have less blood flow than fingers, making it harder for your body’s immune system to detect and stop the infection. But it is possible for fingernails to be affected.

Toenails are made up of multiple layers stacked on top of each other. Toenail fungus can be tough to get rid of because it can get into and in between those layers. It also may sit on top of the nail or grow underneath it. In some cases, fungus can get into the cells that make the nail, called the “nail matrix.” That can make the fungus difficult to eliminate because the cells manufacturing the rest of the toenail are infected.

The older you are, the more likely you are to get toenail fungus. That’s because as you age, your immune system changes. In addition, your nails become more brittle and drier over time, creating more cracks where fungus can live.

Fortunately, toenail fungus typically does not lead to bigger medical problems. I generally encourage healthy adult patients with mild toenail fungus to not treat it,  or to treat it just using topical measures. You can buff the nail down with a file to keep it thin, so the fungus has a less of a home to live in. You should also keep the nail trimmed. If you let your toenails grow long, it creates more places for the fungus to grow.

When treatment is necessary, it usually involves a topical medication or antifungal medications. Oral antifungal medications taken for about six months are the most effective. These drugs help a new nail grow free of infection, slowly replacing the infected part. For milder infections or if you can’t take the oral options, a topical medication may be appropriate. These medications require regular application for up to a year to prevent new fungal growth. Laser treatments also may be an option, although there’s little data supporting their effectiveness.

It’s important to note that reinfection is likely, regardless of treatment chosen, especially as you age. Talk with your health care provider about your concern. He or she can help you determine whether treatment is necessary, and, if so, what kind of treatment will work best for your situation.

— Dr. Dawn Davis, Dermatology, Mayo Clinic

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