Nail fungus

Symptoms
Symptoms of nail fungus include a nail or nails that are:

Thickened
Discolored
Brittle, crumbly or ragged
Misshapen
Separated from the nail bed
Smelly
Nail fungus can affect fingernails, but it’s more common in toenails.

When to see a doctor
You may want to see a health care provider if self-care steps haven’t helped and the nail becomes increasingly discolored, thickened or misshapen. Also talk with your health care provider if you have:

Diabetes and think you’re developing nail fungus
Bleeding around the nails
Swelling or pain around the nails
Difficulty walking