Toenail Fungus: Causes, Symptoms, and Effective Treatment Options

Toenail fungus—also called onychomycosis—is a common condition that affects millions of people. While it may start as a small white or yellow spot under the nail, over time it can cause the nail to become thick, brittle, and discolored. Left untreated, toenail fungus can spread to other nails, cause pain, and even lead to more serious infections, especially for patients with diabetes.

At Laguna Woods Podiatry Group in Laguna Hills, Dr. Neda Arjomandi, a board-certified podiatrist, provides advanced treatment options to restore clear, healthy nails.

What Causes Toenail Fungus?

Fungal nail infections occur when fungi (dermatophytes, yeast, or molds) invade the nail through small cracks or separations. Risk factors include:

• Walking barefoot in public areas like pools, gyms, and locker rooms

• Wearing tight, closed-toe shoes that trap moisture

• Sweaty feet or poor ventilation in footwear

• Nail trauma that allows fungi to enter

• Medical conditions such as diabetes, circulation issues, or weakened immune system

• Family history of fungal infections

Symptoms of Toenail Fungus

Toenail fungus often develops slowly. Common signs include:

• Yellow, brown, or white discoloration

• Thickened or brittle nails that crumble easily

• Distorted nail shape

• Foul odor from the nail

• Separation of the nail from the nail bed (onycholysis)

• Pain when wearing shoes or walking if the infection worsens

Why Treat Toenail Fungus?

Some patients delay treatment because the infection may seem cosmetic. However, untreated fungal nails can:

• Spread to other nails or skin (causing athlete’s foot)

• Lead to pain, ingrown nails, or secondary bacterial infections

• Become especially dangerous for patients with diabetes or poor circulation

Early treatment not only improves appearance but also protects long-term foot health.

Treatment Options for Toenail Fungus

Dr. Arjomandi offers several treatment approaches depending on the severity of the infection:

1. Topical Treatments

Prescription antifungal solutions or medicated nail lacquers are applied directly to the nail. These may work for mild infections but often require long-term use.

2. Oral Medications

Antifungal pills such as terbinafine or itraconazole can be effective for moderate to severe cases. Regular monitoring is required to ensure liver health and safety.

3. Laser Therapy

Laser treatment targets the fungus beneath the nail without damaging surrounding tissue. It is non-invasive and safe, with minimal discomfort.

4. Nail Debridement

Thickened, infected nails can be safely trimmed and thinned in-office to improve comfort and enhance the effectiveness of other treatments.

5. Combination Therapy

For stubborn infections, Dr. Arjomandi may recommend combining oral, topical, and laser treatments for the best results.

Preventing Toenail Fungus

Once treated, it’s important to prevent reinfection. Tips include:

• Keep feet clean and dry

• Wear moisture-wicking socks and breathable shoes

• Disinfect shoes and socks regularly

• Avoid walking barefoot in public showers or locker rooms

• Trim toenails straight across and keep them at a moderate length

• Visit a podiatrist for routine foot care if you have diabetes

Expert Toenail Fungus Care in Laguna Hills

Clear, healthy nails are possible with the right treatment plan. At Laguna Woods Podiatry Group, Dr. Neda Arjomandi uses the latest methods—including laser therapy and medical management—to effectively treat fungal nails and help prevent recurrence.

📍 Call 949-581-2520 to schedule your appointment and start your toenail fungus treatment today.

We proudly serve patients from Laguna Hills, Laguna Woods, Mission Viejo, Lake Forest, Aliso Viejo, Irvine, Laguna Niguel, Laguna Beach, Rancho Santa Margarita, Foothill Ranch, Ladera Ranch, Dana Point, San Juan Capistrano, Newport Beach, Tustin, Costa Mesa, and Santa Ana.