Plantar warts are HPV-caused viral skin growths on the sole of the foot. Common in children and communal barefoot environments. Many resolve naturally with time. Professional treatments include cryotherapy, salicylic acid debridement, microwave therapy (Swift), and needling. Surgical excision is not recommended due to scarring risk.
Plantar warts (verrucae plantaris) are caused by HPV infection of the skin on the sole of the foot. They affect around 14% of the population in any given year and are most common in children, teenagers, and people who use communal barefoot areas. Many warts resolve without treatment in people with healthy immune systems, but persistent or painful warts respond well to professional treatment.
A plantar wart is a viral skin infection caused by the human papillomavirus (HPV) — specifically strains that infect the outer layer of skin on the foot. The virus enters through small cuts or breaks in the skin and causes the outer skin cells to multiply abnormally, producing a rough, thickened growth.
Unlike warts on the hands, plantar warts are often pushed inward by the weight of walking rather than growing outward. This can make them harder to spot and sometimes quite painful.
They may appear as single warts (solitary) or as clusters of smaller warts that merge together — these are called mosaic warts and can be more difficult to treat.
Plantar warts are more common in:
Plantar warts are not highly contagious in the way a cold or flu virus is, but they can be spread by direct contact with the virus on contaminated surfaces. The virus survives well in warm, moist environments.
Plantar warts typically:
If you have a hard, painful area on your foot without these features, it may be a corn or callus rather than a wart — a podiatrist can distinguish between these.
Diagnosis is usually clinical, based on the characteristic appearance described above. Your podiatrist may:
Treatment depends on the number of warts, their location, your pain levels, and how long they have been present.
Watchful waiting: In children with healthy immune systems, plantar warts often resolve on their own within 1 to 2 years. If the wart is not painful and not spreading, watchful waiting is a reasonable approach. However, treatment is advisable if the wart is causing pain, has been present for more than 12 months without improvement, or is spreading.
At-home treatment:
Professional podiatry treatments:
What to avoid: Surgical excision (cutting out the wart) is generally not recommended as a first-line treatment for plantar warts. It carries a risk of painful scarring on the weight-bearing surface of the foot and warts can recur at the scar site.
See a podiatrist if:
The outlook for plantar warts is generally good:
Yes, but not highly so. The HPV virus can spread via contaminated surfaces in warm, moist environments like swimming pools and gym changing rooms. Wearing thongs in these areas significantly reduces your risk.
Warts have a rough, cauliflower-like surface with tiny black dots and cause pain when squeezed from the sides. Corns are usually smoother with a hard central core and hurt most when pressed directly. A podiatrist can easily distinguish between them.
Many do, particularly in children with healthy immune systems. Studies suggest up to 65% of warts in children resolve within 2 years without treatment. However, if the wart has been present for more than 6 months or is causing pain, professional treatment is worthwhile.
This varies by treatment type and wart characteristics. Cryotherapy typically requires 3 to 6 sessions over 6 to 12 weeks. Microwave therapy (Swift) requires 2 to 4 sessions. Stubborn or mosaic warts may need more.
Yes, but cover the wart with a waterproof plaster and wear thongs in communal areas to reduce the risk of spreading the virus to others or to other parts of your own foot.