Question:

If you have toenail fungus, how likely is it to be in your stomach and other parts of your body?

Answer by dermatologist Corey Georgesen, MD:

Toenail fungus is a nail infection usually caused by unique fungi called dermatophytes. These fungi may be found on the skin of humans, animals or in soil. Dermophytes can also cause ringworm and fungal scalp infections. 

Toenail fungus doesn't usually spread to inside your body, like the stomach. The fungi require keratin, found in your hair, skin and nails. They survive best on the skin.

Is toenail fungus contagious?

Yes, toenail fungus is contagious. 

Typically toenail fungus spreads through: 

• Direct contact with the infected person 
• Common household objects, such as towels or clothing 
• Surfaces, especially damp floors
• Animals, most commonly dogs

Can toenail fungus kill you?

Other types of toenail fungus – caused by nondermatophyte molds or yeast – can spread throughout the body. They can cause death in those without an immune system. These infections are rare. If you're immunocompromised, seek care quickly if you suspect a toenail fungus.

How to prevent toenail fungus

Prevent toenail fungus by avoiding fungi-friendly places:

1. Do not share towels, combs, clothing or anything else with an infected person.
2. Wear sandals when using public shower facilities and around swimming pools. 
3. Change wet socks after exercise, as fungi thrive in moist, dark environments.  

If you're prone to skin fungal infections, consider using antifungal cream in your toe web spaces. This area is a natural hiding spot for fungi on the skin.

What toenail fungus cures work?

Toenail fungus can be difficult to treat. The typical treatment for toenail fungus is up to three months, which is why it's important to start treatment early. Normally it takes six to nine months for a toenail to grow out. 

Treatments for toenail fungus include:

• Topical creams
• Nail lacquer
• Spray
• Oral medications

Which doctor treats toenail fungus?

Dermatologists are trained to diagnose and treat toenail fungus accurately. They can also do laboratory testing if needed. If you have thickening, yellowing or other changes in the toenails, see a certified dermatologist quickly.

You can call 800.922.0000 to make an appointment with a Nebraska Medicine dermatologist.