What is a Nail Fungus Infection?
A nail fungus infection, medically known as Onychomycosis, occurs when fungi invade the nail unit, the nail plate, the nail bed beneath it, and sometimes the matrix where the nail grows from. These fungi feed on keratin, the protein that gives nails their structure, which is why an infected nail gradually becomes discoloured, thickened, and brittle. It is usually caused by dermatophytes, the same group of fungi responsible for athlete's foot, and toenails are affected far more often than fingernails because they spend more time in the warm, enclosed, and often damp environment of a shoe.
Types of Nail Fungus Infection
After understanding the causes of toenail fungus, it is equally important to recognise the symptoms for timely intervention. Common symptoms of fungal toenails include:
- Discolouration: The toenail may become yellow, white, or brown, which is one of the earliest signs of fungal infection.
- Thickening of the Nail: As the infection progresses, the toenail may become thickened and more difficult to trim.
- Brittle or Crumbly Nails: Infected toenails may become brittle and start to break or crumble easily, losing their natural strength.
- Distorted Nail Shape: The shape of the toenail may change, appearing more curved or warped, often due to thickening and uneven growth.
- Separation from the Nail Bed: The toenail may begin to lift away from the nail bed, a condition called Onycholysis, which can cause discomfort.
- Foul Odour: In some cases, a mild to strong unpleasant smell may be present due to the fungal infection.
Because fungal toenails don’t always cause significant discomfort early on, it’s easy for the condition to be neglected. However, routine nail and skin care at the podiatrist’s is crucial for those at risk. Regular check-ups help catch any subtle changes in the nails, ensuring timely intervention before the infection becomes more serious.
Types of Nail Fungus Infection
Distal Subungual Onychomycosis
The most common form. It begins at the tip or side of the nail and spreads towards the base, typically causing yellowing, thickening, and a build-up of debris beneath the nail.
White Superficial Onychomycosis
Appears as chalky white patches on the surface of the nail. It tends to stay superficial and can sometimes be scraped away, but it returns if the underlying fungus is not addressed.
Proximal Subungual Onychomycosis
A less common form that starts at the base of the nail near the cuticle. It is more often seen in people with weakened immune systems and may warrant further medical review.
Candidal Onychomycosis
Caused by yeast rather than dermatophytes, this type more often affects the fingernails and surrounding skin, and is sometimes linked to prolonged moisture exposure or underlying health conditions.
Total Dystrophic Onychomycosis
The most advanced stage, where the entire nail becomes thickened, crumbly, and severely distorted, usually after a long-standing, untreated infection.
Signs and Symptoms of Toenail Fungus
Because nail fungus doesn't always cause discomfort early on, it's easy to overlook. Watch for these common signs:
- Discolouration: The nail may turn yellow, white, or brown, this is often one of the earliest signs of infection.
- Thickening of the Nail: As the infection progresses, the nail thickens and becomes harder to trim.
- Brittle or Crumbly Nails: Infected nails may weaken and start to break or crumble at the edges
- Distorted Nail Shape: The nail may appear curved or warped due to thickening and uneven growth.
- Separation from the Nail Bed: The nail may lift away from the nail bed, a condition called onycholysis, which can be uncomfortable.
- Foul Odour: A mild to strong unpleasant smell may develop as the infection sets in.
Because these signs can be subtle, routine nail and skin care with a podiatrist is valuable for those at risk, helping catch changes early before the infection becomes more serious.
When Should You Seek a Podiatrist?
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It's worth seeing a podiatrist if over-the-counter treatments aren't working, if the infection is spreading to other nails or the surrounding skin, or if your nails have become painful, thickened, or difficult to manage. Professional care is especially important if you have diabetes, poor circulation, or a weakened immune system, as these raise the risk of complications, or if the infection keeps returning despite treatment. Seeking advice early generally improves the outcome and helps prevent the infection from becoming more stubborn.
Nail Fungus Treatment Options
There is no single treatment that suits every case. The right option depends on the type and severity of the infection, its likely cause, and your general health, and because nails grow slowly, visible improvement appears gradually as a healthy nail grows in. A podiatrist may recommend one approach or a combination of the following:
Topical Antifungal Medicines
Applied directly to the affected nail, these suit milder or more superficial infections and are gentle enough for longer-term use, though they can take several months to show results.
Oral Antifungal Medication
Prescribed for more severe or established infections, these tablets work from within but require monitoring and may not be suitable for everyone.
Toenail Debridement
Thinning and reducing the affected nail relieves pressure and improves how well other treatments penetrate; it is commonly performed alongside other methods.
PACT Light Therapy
Photodynamic Antimicrobial Therapy (PACT) uses a photosensitising gel and light to target the fungus, offering an alternative for those who prefer to avoid oral medication.
Toenail Removal
In severe cases, part or all of the nail may be removed (avulsion) in a minor procedure under local anaesthetic, allowing a healthy new nail to grow back.
Get Rid of Toenail Fungus at East Coast Podiatry
At East Coast Podiatry, we understand how frustrating toenail fungus can be when it persists over time. As Singapore’s leading podiatry clinic, we offer a range of care methods, including Photodynamic Antimicrobial Therapy (PACT) and topical applications, to target fungal infections and restore healthy nails. In rare cases where the infection is more severe, toenail avulsion may be considered, but our primary focus is on less invasive options to promote nail recovery.
If you’re dealing with toenail fungus, addressing it early can help prevent complications. Contact us today to schedule a consultation and take the first step toward clear, healthy nails. Our team of podiatrists is here to provide personalised care and solutions to support long-term nail health.
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