Small, round, hard spots on the soles of the feet are often called “fish eyes” because of their appearance. In many cases, these growths are plantar warts caused by certain types of human papillomavirus (HPV). The virus enters the skin through tiny cuts or breaks, causing thickened areas that may become uncomfortable when walking or standing. Although plantar warts are generally harmless, recognizing them correctly can help you choose the right treatment.
One common feature of plantar warts is the appearance of tiny black dots inside the growth. These are small blood vessels, not roots or seeds, despite common misconceptions. The pressure of standing and walking can push the wart inward, sometimes making it feel as though something is embedded deep in the foot. Warts may appear individually or in clusters and can develop on the heels, balls of the feet, or other weight-bearing areas.
Plantar warts can be confused with ordinary calluses and corns. Calluses usually develop because of repeated friction or pressure, while plantar warts may interrupt the natural lines of the skin and contain tiny black dots. Warts can sometimes hurt when squeezed from the sides, whereas calluses are often more sensitive to direct pressure. However, these signs are not definitive, and a healthcare professional can help distinguish between them.
Several treatment options are available for plantar warts. Salicylic acid products can gradually remove layers of affected skin when used according to their instructions. A healthcare professional may also recommend cryotherapy, which freezes the wart, or other treatments for stubborn growths. Some plantar warts disappear naturally as the immune system fights the virus, but this can take months or longer. Avoid cutting, digging, or burning the growth yourself, as this can cause injury or infection.
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To reduce the risk of spreading plantar warts, wear sandals in public showers and pool changing areas, avoid sharing footwear or towels, and do not pick at the affected skin. If a growth bleeds, changes appearance, becomes increasingly painful, or is difficult to identify, seek medical advice. People with diabetes, poor circulation, or reduced sensation in their feet should consult a healthcare professional before attempting any home treatment. Proper identification and safe care can help protect your feet and make walking more comfortable.
