Can Warts Grow Under the Toenail?: What Patients Should Know
Most people think of warts as small bumps on the toes or soles. But, did you know that warts aren’t always visible on the surface of the skin. They can sometimes develop in less obvious places, like under the toenail.
Although it’s relatively rare, warts can form under or around the nail. When they do, they may cause discomfort, pressure, nail thickening, or changes in how the nail looks and grows. Because they’re hidden, they can also be mistaken for other nail problems.
How Warts Can Develop Under the Toenail
Warts are caused by the human papillomavirus (HPV), a very common virus that enters the skin through tiny breaks or weak spots. Once inside, it can trigger excess skin growth, leading to a wart.
Warts under the nail (subungual warts) are viral skin growths that develop beneath the nail plate that may affect either fingernails or toenails. They can be more difficult to treat because the nail shields the infected area.
These areas are more vulnerable than you might think. The virus can get in through:
- Small cuts or cracks in the skin
- Nail biting or picking
- Trauma from tight shoes or repetitive pressure
- Damage from improper nail trimming or aggressive pedicures
Why Proper Diagnosis and Treatment Matter
Before starting any treatment, it’s important to confirm with a podiatrist that the problem is truly a wart. Self diagnosis or wrong treatment for conditions like fungal nail infections or nail trauma can delay healing. A proper evaluation helps ensure you’re getting the right care from the start.
Depending on your specific case, your podiatrist may recommend targeted, in-office treatments such as:
- Cantharidin (“beetlejuice”) – a topical treatment that helps lift and destroy wart tissue
- Swift® wart treatment – uses microwave energy to stimulate the body’s immune response to fight the virus
Because the wart sits beneath or around the nail, treatment can take time. The nail plate can act as a shield, and the virus may extend deeper into the tissue. As a result, multiple treatment sessions are often needed to fully resolve the infection and allow healthy nail growth to return.
Watch this video from our podiatrist, Dr. Pelto, to learn more about treating a wart under a toenail:
https://www.facebook.com/share/r/1XXxFvD3PU/
Conclusion
Although uncommon, warts can develop under the toenail. It may feel uncomfortable if left untreated. However, with the right diagnosis and treatment, they can be managed effectively.
If you’re noticing persistent nail pain, thickening, or unusual changes in your toenail, reach out to Central Massachusetts Podiatry. Our highly experienced podiatrists in Worcester and Westborough provide clear diagnosis and the right treatment plan for your feet. Schedule an appointment today.
