Callushttps://en.wikipedia.org/wiki/Callus
Callus wani yanki ne na fata mai kauri wanda ke samuwa a matsayin martani ga maimaita gogayya, matsa lamba, ko wani haushi. Maganin callus gabaɗaya ba ya cutarwa kuma yana taimakawa hana kumburi da ba da kariya. Duk da haka, samuwar wuce gona da iri na iya haifar da wasu matsaloli, kamar ciwon fata ko kamuwa da cuta.

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Yana da mahimmanci a tabbatar ba warts ba ne.
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  • Calluses suna kan ƙafar hagu (plantar) da ƙafar dama (a gefe).
  • Corns (calluses) suna faruwa daidai gwargwado a kan ƙafafu biyu, inda ake matsa lamba ko inda takalmi ya danna ƙafa. Idan irin wannan rauni ya faru a wurin da babu matsi, ya kamata a yi zargin wart.
References Corns 29262147 
NIH
Corns na tasowa daga maimaita shafa ko matsa lamba. Corn yanki ne na musamman na fata mai kauri, yayin da callus ya fi bazuwa. Corns sau da yawa suna faruwa a cikin 'yan wasa ko mutanen da ke da matsalolin ƙafa kamar rashin daidaituwa na takalma. Hakanan suna yawaita a tsakanin tsofaffi, masu ciwon sukari, da masu yanke jiki. Corns ya kamata a duba su azaman alama, ba a matsayin yanayi mai keɓe ba.
A corn, also known as a calvus, heloma, or focal intractable plantar hyperkeratosis, is a type of callosity. Corns are uncomfortable, thickened skin lesions that result from repeated mechanical trauma due to friction or pressure forces. In the literature, confusing terminology is often used to call different types of hyperkeratotic skin lesions. Nevertheless, a corn should be distinguished from a callus, which is a more diffuse type of callosity. Thus, a corn is a well-delimited focal area of hyperkeratosis. This condition is often seen in athletes and patients exposed to unequal friction force from footwear or gait problems, including the elderly, patients with diabetes, and amputees. It should be regarded as a symptom rather than an effective disease.
 Clavus 31536205 
NIH
Corn, wanda kuma aka sani da clavus, yanayin ƙafa ne da ake gani a asibitoci. Wuri ne mai kauri inda fata ke haifar da gogayya ko matsi, sau da yawa mai zafi. Yana da mahimmanci a bambanta shi daga ciwon kai ko warts. Calluses suna kama da juna amma ba su da tsakiya kuma ba su da zafi. Magani yana nufin kawar da alamun bayyanar cututtuka da kuma hana masarar gaba. Yin maganin wannan yanayin mai raɗaɗi zai iya inganta rayuwar marasa lafiya sosai, musamman ga tsofaffi ko masu aiki.
A clavus or clavi (plural) is a frequently encountered condition in the out-patient clinic, known colloquially as a corn. It is one of the many hyperkeratotic lesions of the foot and therefore requires differentiation from other etiologies such as calluses or plantar warts. A clavus is a well-demarcated thickened area of the epidermis that has a central core. This skin lesion is most commonly found on the foot and is often painful. A clavus results from repeated friction, pressure, or trauma to a specific area of the foot. A callus is another hyperkeratotic skin lesion that is similar to a clavus. It is an area of thickened epidermis with less defined borders and is also the result of repeated mechanical stress. Additionally, calluses lack the painful central core seen with clavi. Calluses most commonly present on the hands and feet. The older and the physically active are most commonly affected by clavi. Treatment focuses on symptomatic relief and lifestyle modification to prevent future clavus formation. By treating this painful and sometimes life-altering skin lesion, physicians can have a profound impact on their patients’ lives.