# What is the main difference between a corn and a callus? Canonical page: https://clinicsjo.com/en/faq/what-is-the-main-difference-between-corn-and-callus Language: en Category: dermatology Publisher: ClinicsJo Published: 2026-09-13T08:09:51.311Z Content updated: 2026-09-13T08:09:51.311Z Translation (ar): https://clinicsjo.com/ar/faq/what-is-the-main-difference-between-corn-and-callus Both corns and calluses are thickened layers of skin that develop as a result of repeated pressure or friction. However, there are key differences that distinguish them in terms of shape, location, and common causes. ## Corns A corn is a thickened area of skin that usually forms on the tops or sides of the toes [\[3\]](). Its primary cause is often ill-fitting shoes that create constant friction and pressure on a specific area [\[3\]](). A corn is characterized by being smaller and more defined, with a hard center that may be painful when pressed [\[2\]](). It can be painful, but it is rarely a serious problem for most people [\[3\]](). ## Calluses A callus is a thickened area of skin that typically forms on the soles of the feet or the hands [\[3\]](). A callus also forms as a result of repeated pressure or friction and is often a protective reaction of the skin to prevent blisters [\[3\]](). For example, farmers or rowers may develop calluses on their hands [\[3\]](). A callus is usually larger and more widespread than a corn, less defined, and may not be painful unless it becomes very thick [\[2\]](). ## Common Causes - **Ill-fitting shoes:** Shoes that are too tight or too loose, as well as high heels or those with pointed toes, are major causes of corns and calluses on the feet [\[1\]](). - **Structural foot deformities:** Conditions such as bunions or hammertoes can increase pressure and friction on specific areas, leading to the formation of calluses or corns [\[1\]](). - **Repetitive activities:** Activities that involve repeated friction or pressure on the hands or feet, such as using hand tools or playing certain sports, can cause calluses [\[3\]](). ## Prevention and Treatment Prevention involves reducing friction and pressure on the skin. This can be achieved by wearing appropriate, comfortable shoes that provide sufficient room for the toes and good arch support [\[1\]](). It is recommended to purchase shoes at the end of the day when feet are at their largest to ensure the correct size [\[1\]](). Clean, well-padded socks can also be used to reduce friction [\[1\]](). For hands, gloves can be worn during activities that cause friction [\[3\]](). For treatment, feet can be soaked in warm water and then gently rubbed with a pumice stone to reduce the size of the callus or corn [\[2\]](). Rubbing should be done gently and in one direction to avoid tearing the skin [\[1\]](). Doughnut-shaped corn pads can be used to protect a corn during healing [\[3\]](). It is very important not to try to cut corns or calluses yourself, or to use over-the-counter liquid corn removers or medicated patches, as this can lead to skin damage and infections [\[1\]](). ## When to See a Doctor? People with certain health conditions, such as diabetes or circulatory problems, should be extremely cautious and contact a healthcare provider immediately if they notice any problems with their feet, such as wounds, blisters, redness, warmth, or pain, or if the corn or callus does not improve with home treatment [\[3\]](). Diabetes can cause nerve damage and reduce blood flow to the feet, making healing difficult and increasing the risk of infection and sores that could lead to serious complications [\[1\]](). In these cases, the affected tissue may need to be removed by a professional, and antibiotics may be required [\[3\]](). You can read more about this topic in our article on [Corns and Calluses: Causes, Prevention, and Treatment (Arabic)](). ## Medical references - [Corns and calluses]() - [Corns and Calluses]() - [Diabetes & Foot Problems]() General health education; not a substitute for individualized clinical assessment. Citation URL: https://clinicsjo.com/en/faq/what-is-the-main-difference-between-corn-and-callus#answer