Nail Fungus: What You Need to Know

Nail fungus, also known as onychomycosis, is a common condition that can affect both toenails and fingernails. It’s usually caused by dermatophytes, yeast, or mold—organisms that thrive in dark, moist environments, such as the inside of closed shoes.

How to Identify It

Common signs of a fungal nail infection include:

• Yellowish or whitish discoloration

• Thickened nails

• Brittleness or flaking

• Mild odor

• Nail lifting or separation from the nail bed

Risk Factors

Onychomycosis is more likely to affect people who:

• Wear closed-toe shoes for long periods

• Use public wet areas like gyms or swimming pools

• Sweat excessively on their feet

• Have a family history of nail fungus

• Have weakened immune systems

Care and Prevention

While treatment should always be guided by a healthcare professional, some preventive steps can help reduce risk and support daily hygiene:

• Keep feet clean and dry

• Wear cotton socks and change them daily

• Avoid sharing nail tools like clippers or files

• Choose breathable footwear

• See a dermatologist if you notice changes in your nails