Nail fungus (onychomycosis) is a common condition that occurs when fungi infect your fingernails or toenails, often starting as a white or yellow spot under the tip of your nail. As the infection progresses, the fungus can cause discoloration, thickening, crumbling, and even detachment of the nail.
Fungal infections typically develop in warm, moist environments and are more common in toenails than fingernails due to increased exposure in sweaty shoes and socks. Without treatment, the infection can spread to other nails or surrounding skin.
Nail fungus can cause visible and sometimes painful symptoms, including:
Yellow, brown, or white discoloration
Thickened or brittle nails
Crumbly or ragged edges
Nail distortion or shape changes
Separation of the nail from the nail bed
Mild odor coming from the affected nail
If left untreated, the infection can worsen and become harder to treat. In severe cases, it may even lead to permanent nail damage or secondary bacterial infections.
Toetal Podiatry uses advanced in-office diagnostic tools, including microscopy and lab tests, to confirm fungal infections and determine the best course of treatment.
Symptoms may develop slowly and include:
Yellow, white, or brown discoloration of the nail
Thickened or misshapen nails
Brittle, crumbly, or ragged edges
Foul odor from the nail
Nail lifting off the nail bed (onycholysis)
Itching or redness around the nail
As the infection progresses, nails may become painful and difficult to trim, sometimes making walking uncomfortable.
Toetal Podiatry offers in-office diagnostic tools to confirm fungal infections, such as:
Nail scrapings for lab analysis
Microscopic examination or fungal culture
Nail biopsy in rare cases to rule out psoriasis or trauma
Early diagnosis ensures faster and more effective treatment.
Yes. Even after successful treatment, reinfection is common if preventive measures aren’t taken. You can reduce recurrence by:
Keeping feet clean and dry
Wearing breathable shoes and moisture-wicking socks
Avoiding barefoot walking in shared areas
Regularly disinfecting shoes and nail tools
Not sharing clippers or nail polish
Getting routine foot checks with your podiatrist
Q: Is nail fungus painful?
A: It usually starts without pain, but thickened or distorted nails can become uncomfortable or cause pressure in shoes over time.
Q: Can I wear nail polish with a fungal infection?
A: It’s not recommended — polish can trap moisture and make the infection worse. Medicated polishes are a better alternative.
Q: How long does treatment take?
A: Nail fungus is slow to heal — it can take 3–6 months or longer to see full results, as new healthy nail grows in.
Q: Will the nail go back to normal?
A: Often yes, but in some severe or long-term cases, nail shape may remain altered even after clearing the fungus.
EXCELLENT Based on 106 reviews Posted on Anu BunnyTrustindex verifies that the original source of the review is Google. I highly recommend Dr. Sharaara Rahman! I found her to be confident and determined to help heal my ankles. I have a double sprained left ankle and a single sprained right ankle, and decided to do shockwave therapy, which got me to the point of being able to walk longer than 15 minutes without pain (note that the shockwave therapy machine is better in the midtown office than downtown). She has gone above and beyond providing every option available to me. She is also very funny and easy to talk to, making each appointment a comfortable environment!Posted on Jeniece SchroeterTrustindex verifies that the original source of the review is Google. 5/5 Stars – Toetal Podiatry (274 Madison Ave location) I stumbled upon Toetal Podiatry on Madison by pure chance, and wow, what a lucky find! Even though I now live in Florida, I will NEVER let anyone else touch my feet again unless it’s Dr. Anna Wu. She’s everything you could want in a doctor: pleasant, genuinely kind, incredibly knowledgeable, calm, and confident. She puts you completely at ease. But let’s talk about the whole team first, the staff is exceptional. Nana at the front desk is one of the sweetest, most attentive people I’ve encountered in ages; she makes you feel truly cared for. Beatriz, who handled my X-rays and everything else, was just as wonderful. The vibe here isn’t clinical at all—it feels like catching up with smart, caring friends rather than a typical doctor’s visit. As a serious runner, my feet were in rough shape: I run with this awkward T-Rex toe-up form 😂, and both big toes had severe blood blisters, hematomas, and painful ingrown nails on both sides. I could barely walk. Dr. Wu didn’t bat an eye, she stayed completely unfazed, explained my options clearly, and I trusted her expert judgment completely. Best decision ever! She ended up removing both big toenails entirely, and honestly? It was easy-breezy. Zero drama, minimal discomfort, and the recovery has been smooth. I could go on and on about how amazing this place is, far beyond what I’d expect after such a procedure. When it comes to feet, Toetal Podiatry on Madison has a customer for life. I’m officially a lifer! If you’re dealing with any foot issues, do yourself a favor and book here, you won’t regret it. 🌟🏃♀️Posted on SANDRA MOLONEYTrustindex verifies that the original source of the review is Google. Amazing doctors, amazing staff. I had awful foot pain.(Neuroma). Had the surgery. NO MORE PAIN. Come see Dr.Rahman. You’ll be glad you did!Posted on Dorit Kleiner EilonTrustindex verifies that the original source of the review is Google. I have been struggling with chronic foot issues for many years due to active life style and sports. Dr. Rahman is a dedicated professional who pays attention to details and involves her patients with their own treatment. She not only helped me get better but also worked with me on how to best take care of my feet. I am back at hiking! :) A true doctor from the heart.Posted on Christine DingTrustindex verifies that the original source of the review is Google. I saw Dr. Aminian for a foot problem and she was amazing. She is very kind and sweet and I highly recommend her!Posted on AnnakTrustindex verifies that the original source of the review is Google. Dr. Rahman has been meticulous, clear, and effective. She's seen me through my medical care, always with good treatment plans. I appreciate the front desk assistance too!Posted on Hal DoueckTrustindex verifies that the original source of the review is Google. Dr Erfanian was awesome. Super patient, great bedside manner, and was able to diagnose issues and resolve them more than other doctors were! 10/10!