Interdigital necrobacillosis also know as “foot rot” is common in feedlots. It occurs when bacteria that is common in feedlots is able to penetrate a cows skin between the toes. This causes lameness and swelling, and discomfort to the cow. This occurs when a cow cuts its foot in winter, or spends prolonged times standing in manure or water in the summer. Pen maintenance is a preventative action to fight the occurrence of foot rot. Anti-biotics have also been proven to cure foot rot, but it is hard to distinguish if a cow has foot rot or some other foot problem which the anti-biotics would not help.