Tiny fungi can creep under your toenails and cause an infection, leading to a number of unpleasant symptoms.

The American Podiatric Medical Association says signs of toenail fungus include nails that:

• Are darker white or more yellow than usual.
• Have a strong odor.
• Accumulate debris below the surface, such as white flecks.
• Become thick and may be difficult to cut.
• Are infected and transmit that infection to neighboring nails.
• Are painful, making it more difficult to walk.

Source: HealthDay