Corns and Calluses Summary Corns and calluses are caused by pressure or friction on your skin. They often appear on feet where the bony parts of your feet rub against your shoes. Corns usually appear on the tops or sides of toes while calluses form on the soles of feet. Calluses also can appear on hands or other areas that are rubbed or pressed. Wearing shoes that fit better or using non-medicated pads may help. While bathing, gently rub the corn or callus with a washcloth or pumice stone to help reduce the size. To avoid infection, do not try to shave off the corn or callus. See your doctor, especially if you have diabetes or circulation problems. NIH: National Institute on Aging National Institute of Arthritis and Musculoskeletal and Skin Diseases Find an Expert American Academy of Dermatology American Academy of Dermatology American Podiatric Medical Association American Podiatric Medical Association Find a Dermatologist American Academy of Dermatology National Institute of Arthritis and Musculoskeletal and Skin Diseases National Institute of Arthritis and Musculoskeletal and Skin Diseases Start Here Blisters, Calluses, and Corns Nemours Foundation Corns and Calluses American Podiatric Medical Association Corns and Calluses Mayo Foundation for Medical Education and Research Encyclopedia Bunions Related Issues Bunions (Hallux Abducto Valgus) American College of Foot and Ankle Surgeons Footwear American Orthopaedic Foot and Ankle Society Hammertoe American College of Foot and Ankle Surgeons Teenagers Callus Logical Images Images Callus Logical Images Corn Logical Images Clinical Trials ClinicalTrials.gov: Callosities National Institutes of Health Array Corns and calluses Prevention and Risk Factors Foot Care National Institute on Aging Prevent Diabetes Problems: Keep Your Feet Healthy National Institute of Diabetes and Digestive and Kidney Diseases Treatments and Therapies How to Treat Corns and Calluses American Academy of Dermatology Journal Articles Corns and Calluses Latest News Cheap Tape May Keep Blisters Off Runners’ Feet HealthDay