Yes, calluses can spread, particularly across areas like the ball of your foot.
Calluses aren't static; they can change in size and shape over time due to continued pressure and friction. A callus on the ball of your foot, for example, might spread across that area. This spreading often indicates an underlying issue, such as a problem with one of the metatarsal bones (the long bones at the base of your toes). Similarly, a "pinch callus" can grow along the outer edge of the heel or big toe if subjected to repeated pressure.
Here's a breakdown of how calluses can "spread":
- Increased Pressure: If the initial cause of the callus isn't addressed (e.g., ill-fitting shoes, abnormal gait), the pressure will continue, causing the callus to enlarge or affect surrounding areas.
- Compensatory Changes: Sometimes, when one area is painful due to a callus, you might shift your weight to another part of your foot. This altered weight distribution can lead to new calluses forming or existing ones spreading.
- Metatarsal Issues: As the reference stated, calluses on the ball of the foot can indicate a metatarsal problem. The callus isn't necessarily "spreading" in the sense of being contagious, but it's enlarging due to the underlying biomechanical issue affecting a larger area.
It's important to consult with a podiatrist if you notice a callus spreading or causing significant pain. They can help identify the underlying cause and recommend appropriate treatment, such as orthotics, shoe modifications, or other interventions to redistribute pressure and prevent further callus development.
In summary, calluses don't "spread" like an infection, but they can enlarge or new ones can form in adjacent areas due to continued or altered pressure and friction.
