Many people may have experienced bumps on their feet, which are accompanied by significant pain when moving and seriously affect our work and life. What kind of bumps do they look like? It may be corns, plantar warts, calluses. 1, corns: corns are mostly found in the front of the palm of the small toe lateral, toe back, heel and other prominent or easy to rub parts, is due to long-term local pressure or friction on the foot caused by limited cone-shaped keratinous hyperplasia damage. Wearing shoes too tight, the foot long-term friction stimulation is an important cause. It appears as a well-defined, yellowish, limited circular keratinous hyperplasia, wedge-shaped down to the dermis, cone-shaped, with a smooth surface, normal skin lines, a hard keratinous peg in the center, and a transparent ring around it. The actual fact is that you can find a lot of people who are not able to get a good deal on the actual actual actuality. 2, plantar warts: is caused by human papilloma virus infection, can be transmitted through self-inoculation, direct contact. Self-perceived pain of varying degrees. 3, callus: in fact, we are commonly known as “calluses”, is due to long-term pressure, friction, etc. caused by the foot flat keratinous hyperplastic damage, most likely in the foot and plantar, especially at the bone prominence and other easy friction, pressure. It often appears as a limited yellow flat keratinous thickening with indistinct boundaries, thicker in the center, thinner at the edges, harder in texture, smooth and translucent on the surface, often occurring symmetrically on the foot, generally with chronic onset and no conscious symptoms. The first thing you need to do is remove the triggering factors, such as not wearing tight shoes, you can use corneal cream or liquid nitrogen freezing treatment. Plantar warts can be treated with topical vitamin A acid preparations, 5-FU cream, liquid nitrogen freezing, etc. Calluses can be treated with topical keratin exfoliators (retinoic acid ointment, urea ointment, etc.) or by soaking in hot water and then chipping away the surface keratin layer with a small knife.