A callus beneath the foot could become a painful problem when it becomes too thick and hard. These plantar calluses might be a common problem and a plantar callus can keep growing back should the reason behind that plantar callus is not eliminated. A callus may occur below any one of the five metatarsal heads under the front foot or it may be much more spread out and be under many metatarsal heads. At times a centralized part of the callus might develop into a more painful plantar corn. A callus is a normal thickening of the epidermis as a result of excessive pressure. Ordinarily weight should be distributed over all of the metatarsal bones equally, however, if one or more of these metatarsal bones get more bodyweight than another the epidermis will become thick and harden to shield itself. The thing is that if that pressure continues, the skin will become even thicker and become painful. This thickening is actually a natural physiological response, and an example is what occurs on hands when you chop a great deal of timber. The epidermis on the hands grows calluses as a result of that excessive pressure to protect itself. Whenever you stop chopping wood, those calluses disappear. It will be the same for a plantar callus or corn on the feet, apart from that the excessive pressure doesn't go away by itself.
Podiatry practitioners are usually great and skilful at doing away with and debriding calluses along with remedying the symptoms that you might get from plantar calluses, however that only fixes half the trouble. That callus underneath the foot is going to return sooner or later when what ever is bringing about that high pressure is not dealt with. A lot of for that increased pressure, and everybody will probably be different. Quite often there might be a structural issue that means one or more metatarsals is much more mobile as opposed to others and this moves up out of the way and allows the rest of the metatarsals to take more pressure. Should this be the situation then foot supports may be used to assist in improving which biomechanics. A hammer toe or another toe deformity like that may cause more pressure underneath the foot in the area of the problem toe, so treatment for this increased pressure will have to be directed at correcting that claw toe. There might be a fallen metatarsal head leading to more excessive pressure on it. In these cases a foot orthosis or support with a cut out in it could certainly reduce the higher pressure away from that region or surgery can be performed to elevate that metatarsal bone to even out pressure over every one of the metatarsal heads. There are several other probable reasons and different choices for each of them.
Plantar calluses, just like corns, do not have roots which they come back from. They are brought on by too much pressure. Removing the callus merely eliminates the symptoms for a short time and does not address what causes it. For those who have plantar calluses underneath your foot which keeps growing back, then please see a podiatrist and talk to them about what your better options are over the long term to handle that.