What Causes Toenail Fungus: Types and Onychomycosis | DPM

Quick answer: What Causes Toenail Fungus Onychomycosis Types Of Toenail Fungus is a common nail condition with multiple causes including trauma, fungal infection, biomechanical pressure, and underlying medical conditions. Treatment depends on the cause: trauma resolves as the nail grows out (6-12 months), fungus needs antifungal therapy, and biomechanical issues need shoe and orthotic correction. Call (810) 206-1402.

✅ Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatrist · Last updated April 6, 2026

What Causes Toenail Fungus & Onychomycosis? [Types of Toenail Fungus]

What Causes Toenail Fungus & Onychomycosis? [Types of Toenail Fungus] 🦶We review the TRUE Causes of toenail fungus and onychomycosis. We also review the types of toenail fungus.🦶 Related Videos: Athlete’s Foot Fungus Treatment: https://youtu.be/PKT_slq6M54 Toenail Fungus Treatment: https://youtu.be/Uq30wM7YSAM Best Diabetes Drink: https://youtu.be/YOFrlc10E4E Reverse 90% of Diabetes with this Diet: https://youtu.be/qCQW9e7CrEk 10 Best Diabetic Vitamins: https://youtu.be/sPihveT3oc0 Best Diabetic Foods: https://youtu.be/jLID96VA7j0 29 Worst Foods for Clogged Arteries: https://youtu.be/bZKQEp2AHfc How to know your heart is not well: https://youtu.be/qx4QAX2L4Fo Vitamin D, Vitamin K2 & Magnesium: https://youtu.be/esTz-_Mpm4Q Reverse Clogged Arteries: https://youtu.be/oNiZo0nO048 Diabetic Neuropathy [Peripheral Neuropathy]: https://youtu.be/E_0ALrqYUSM 👉 LINKS 👈 Disclaimer: This video and description contain affiliate links, which means we may receive a commission if you click on one of the product links. Best Socks for Toenail Fungus:

Best socks for toenail fungus

Best Toenail Fungus Over-the-Counter Products:

best over the counter toenail fungus treatment

Best Ways to Scrub & Exfoliate Toenails & Feet:

How to Exfoliate Your Feet

Athlete’s Foot Fungus Treatment Products: Lotrimin Ultra Athlete’s Foot Cream: https://geni.us/K6D7XN (Amazon) Athlete’s Foot Spray: https://geni.us/H3tk14Z (Amazon) Tea Tree Oil Kit: https://geni.us/ZDR4 (Amazon) Tough Actin Tinactin Cream: https://geni.us/Ri3S5 (Amazon) Athlete’s Foot Power: https://geni.us/e058wP (Amazon) Best Toe Nail Fungus Treatment [Onychomycosis treatments] Toenail fungus Extra Strength Application: https://geni.us/TjZuwY (Amazon) Toenail fungus application pen: https://geni.us/0du8 (Amazon) Vicks Vaporub: https://geni.us/zHdX (Amazon) Listerine: https://geni.us/iSoFdA (Amazon) Kerasol Nail Restoration: https://geni.us/ZjdPuH (Amazon) Nail Fungus & Foot Fungus Combo pack: https://geni.us/tA74KAq (Amazon) Toenail fungus, also known as onychomycosis, is a common fungal infection that affects the nails of the toes. It is caused by several fungi, including dermatophytes, yeasts, and molds. The fungus thrives in warm, moist environments and can quickly spread from person to person in shared public spaces such as locker rooms and showers. Some of the risk factors that can increase the likelihood of developing toenail fungus include: Age, Gender, Genetics & most importantly Health conditions. Trauma: Injuries to the toenail or nail bed can increase the risk of developing toenail fungus. There are several types of toenail fungus, including: Distal subungual onychomycosis: This is the most common type of toenail fungus and affects the nail bed and underside of the nail. White superficial onychomycosis: This type of toenail fungus affects the surface of the nail, causing white patches or streaks. Proximal subungual onychomycosis: This type of toenail fungus affects the base of the nail, near the cuticle. Total dystrophic onychomycosis: This type of toenail fungus causes the nail to thicken and separate from the nail bed, eventually falling off. 👉 Shoes 👈 Best Shoes:

Podiatrist Recommended Shoes

Best Products: https://www.michiganfootdoctors.com/recommended-foot-doctor-products/// 📢Come See Us in Detroit, Michigan, Berkley Michigan; Bloomfield Hills, Michigan, Lansing Michigan; and Grand Blanc Michigan📢 If you are in Michigan, consider seeing us at our clinic: https://www.michiganfootdoctors.com/. https://g.page/r/CaxJ9b-O6o27EAE 👉 LINKS 👈 Disclaimer: This video and description contain affiliate links, which means we may receive a commission if you click on one of the product links. I appreciate your support of this channel! DISCLAIMER: Dr. Tomasz Biernacki received his Doctor of Podiatric Medicine degree from Kent State College of Podiatric Medicine in 2013; he completed his Surgical Reconstructive Foot Surgery & Podiatric Medicine Residency in 2017; he completed 2 separate traveling Fellowships in Diabetic Surgery, Skin Grafting & Nerve Surgery. He is double board certified in Podiatric Medicine and separately in Foot & Ankle Surgery. His use of “doctor” or “Dr.” about himself solely refers to that degree. Dr. Biernacki is a licensed podiatrist in Michigan. This video is for general informational purposes only. It should not be used to self-diagnose and is not a substitute for a medical exam, cure, treatment, diagnosis, prescription, or recommendation. It does not create a doctor-patient relationship between Dr. Biernacki and you. It would be best if you did not change your health regimen or diet before consulting a physician and obtaining a medical exam, diagnosis, and recommendation. Always seek the advice of a physician or other qualified health provider with any questions regarding a medical condition.

Michigan Podiatric Care at Balance Foot & Ankle: Expert Treatment for Every Foot Condition

Michigan patients with any foot or ankle concern — from acute injuries and chronic pain to preventive care and high-risk foot management — receive expert podiatric care at Balance Foot & Ankle. Our fellowship-trained podiatrists provide hands-on exam plus imaging when needed, accurate diagnosis, and evidence-based treatment that addresses root causes rather than simply managing symptoms. We are committed to transparent communication: patients always understand their diagnosis, their treatment options, and realistic expectations before any intervention is undertaken.

---

Related Treatment Guides

• Toenail Treatment
• Plantar Fasciitis & Heel Pain Treatment
• Custom 3D Orthotics
• Sports Foot & Ankle Injury Treatment

Our Howell office (4330 E Grand River) serves Livingston County, and our Bloomfield Hills office (43494 Woodward Ave #208) serves Oakland County. Both locations offer in-office X-ray, same-week new patient scheduling, and the full range of conservative and surgical podiatric services. We accept all major Michigan insurance plans and verify coverage before appointments — no insurance surprises at check-in. Michigan patients ready to take the next step toward better foot health can call Balance Foot & Ankle at (810) 206-1402 to schedule today.

In-Office Treatment at Balance Foot & Ankle

If home treatment isn’t providing relief for your toenail fungus, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.

Frequently Asked Questions

How long does it take a toenail to grow back?

6-12 months for a full big toenail. Smaller toenails 4-6 months. Speed varies with age, circulation, and nutrition.

Will this affect other nails?

Trauma affects only the injured nail. Fungal infection can spread without treatment. Systemic causes affect multiple nails simultaneously.

Should I cover the nail or leave it open?

Cover with a breathable bandage during work or activity. Leave open at night for healing. Keep dry and clean.

What is Toenail fungus?

Toenail fungus is a common foot/ankle condition that affects mobility and quality of life. Understanding the underlying cause is the first step in successful treatment. Our podiatrists at Balance Foot & Ankle perform a hands-on biomechanical exam, review your activity history, and use diagnostic imaging when appropriate to identify the root cause—not just treat the symptom. Many patients have been told to “rest and ice” without a deeper diagnostic workup; our approach is different.

Symptoms and warning signs

Common signs of toenail fungus include pain that worsens with activity, morning stiffness, swelling, tenderness when palpated, and difficulty bearing weight. If you experience sudden severe pain, inability to walk, visible deformity, numbness or color change, contact our office the same day or visit urgent care—these can signal a more serious injury such as a fracture, tendon rupture, or vascular compromise. Diabetics with any foot wound should seek same-day care.

Conservative treatment options

Most cases of toenail fungus respond to non-surgical care: structured rest, supportive footwear changes, custom orthotics, targeted stretching and strengthening protocols, anti-inflammatory medications when medically appropriate, and in-office procedures such as ultrasound-guided injections. We also offer advanced therapies including MLS laser therapy, EPAT/shockwave, regenerative injections, and image-guided procedures. Treatment is sequenced from least invasive to most invasive, and we explain the rationale at every step.

When is surgery considered?

Surgery is reserved for cases that fail 3-6 months of well-structured conservative care, when there is structural pathology (severe deformity, complete tear, advanced arthritis), or when imaging shows damage that will not heal without intervention. Our surgeons have performed 3,000+ foot and ankle procedures and prioritize minimally-invasive techniques whenever appropriate. We discuss recovery timelines, return-to-activity milestones, and realistic outcome expectations before any procedure is scheduled.

Recovery timeline and prevention

Recovery from toenail fungus varies based on severity and chosen treatment path. Conservative cases often improve within 4-8 weeks with consistent adherence to the protocol. Post-procedural recovery may range from a few days (in-office procedures) to several months (reconstructive surgery). Long-term prevention involves footwear assessment, activity modification, structured strengthening, and regular check-ins with your podiatrist if you have a history of recurrence. We provide written home-exercise plans and digital follow-up support.