What Causes Plantar Warts?

It’s no surprise that small, rough growths known as plantar warts are frustrating and uncomfortable. They usually appear on the heels or other weight-bearing areas of your feet. Understanding what causes plantar warts is the first step in preventing and treating them. 

Fortunately, board-certified podiatrist Andrew R. Harrison, DPM, located in the Lower Pacific Heights area of San Francisco and San Jose, California, uses advanced methods to permanently destroy your foot warts and the virus that causes them. 

In the meantime, we’ll explore the causes of plantar warts, how they spread, and the best practices for keeping your feet healthy. 

What are plantar warts? 

Let’s start with the basics. Plantar warts are caused by a viral infection in the outer layer of the skin on the soles of your feet. They are a type of wart caused by the human papillomavirus (HPV). 

Unlike other warts that appear on your hands or other parts of your body, plantar warts can be especially painful because they develop on your pressure points, causing discomfort when you walk or stand. 

How do you get plantar warts? 

Plantar warts are caused by direct contact with HPV. With that in mind, here’s how you might come in contact with this virus: 

Walking barefoot in public areas 

Warm, moist environments like locker rooms and communal showers in gyms can be breeding grounds for this virus. Additionally, swimming pools and surrounding areas can also carry the virus, especially in communal and public pools. 

Direct contact with infected surfaces 

Don’t share personal items like towels, shoes, or socks. Additionally, keep in mind that HPV can survive on surfaces like mats or the floors of public areas. 

Why are some people more susceptible? 

The good news is that not everyone who comes into contact with HPV will develop plantar warts. Here are the factors that can increase your risk: 

Weakened immune system 

If you have a weak immune system, you’re more susceptible to infections, including HPV. Conditions like diabetes or autoimmune diseases can also make you more prone to developing warts. 

Skin integrity 

Minor cuts or abrasions on your feet provide an entry point for the virus. Dry or cracked skin is also more vulnerable to infections. 

Age

Children and teenagers are more likely to develop plantar warts due to their developing immune systems. 

Treating plantar warts 

If you already have plantar warts, don’t panic. Several treatments can help you find relief: 

Home remedies 

Over-the-counter treatments containing salicylic acid can dissolve your warts over time.

Medical treatments  

When it comes to treating your warts most effectively, medical treatments like cryotherapy to freeze them, laser therapy to destroy the wart tissue, and surgical removal, in some cases, are the best bets. 

When to see a doctor 

If you’re unsure if your warts require medical attention, pay attention to signs like your wart being painful or changing in appearance, having multiple warts, a weakened immune system, or over-the-counter treatments not working. 

Understanding the causes of plantar warts and how they spread can help you take the necessary steps to prevent and treat them. Many effective treatments are available with help from Dr. Harrison. 

If you’re ready to learn more about how to keep your feet healthy and from discomfort, don't hesitate to contact Dr. Harrison and schedule an appointment to discuss your options today.