Can walking on calloused feet cause foot ulcers?

Yes: The same risk factors for ulcers in non-calloused foot apply in callused feet. Callouses are not necessarily protective.

Yes: It is common for ulcer to start underlying a previous callus site. Diabetics are especially vulnerable to this because they may have lost sensation in their feet. By not having adequate sensation in their feet, they are more likely to continue walking on the affected area. Prolonged pressure, friction and continued walking on calluses may lead to underlying blistering and foot ulceration.

Yes: If the callouses get too thick they can ulcerate. If you are a diabetic or have decreased sensation in your feet you are at greater risk