Nail Fungus (Onychomycosis): Why It Is Slow to Treat
Nail fungus makes nails thick, discoloured and crumbly. It needs a confirmed diagnosis and months of treatment, because nails grow slowly and relapse is common.
Condition guide
Nail fungus
Also known as Onychomycosis, Toenail fungus, Fungal nail infection, Tinea unguium.
In short
Nail fungus is a slow fungal infection that makes nails thick, discoloured and crumbly, most often on the toenails. It is more common with age, diabetes, sweaty feet and closed footwear. Not every thick or discoloured nail is fungal, so testing before treatment is useful, and treatment takes months because nails grow slowly.
Typical signs
- A yellow, white or brown nail
- A thickened nail that is hard to cut
- Crumbling or splitting at the edge of the nail
- The nail lifting away from the nail bed
When to see a dermatologist
- A nail changes colour or thickness, so the cause can be confirmed
- You have diabetes or poor circulation
- There is pain, swelling or pus around the nail
- A dark streak appears in a nail, which should always be checked
Signs vary from person to person and several skin conditions look alike. Only an examination can confirm a diagnosis.
Read the guides
Full, referenced articles on nail fungus written for Indian skin, with answers to common questions.
Worried about nail fungus?
Book an online consultation with Dr. Maria Ansari for an assessment and a written care plan made for you.
This page is a short summary for general education and does not replace a consultation with a qualified dermatologist. Do not start, stop or change any medicine based on this page. Read the full medical disclaimer.