Some risk factors for developing corns are related to your body and might be genetic or are acquired by, for example, trauma or ageing. These include foot abnormalities (flat-footed, abnormal gait) or deformities (bunions, hammer toe) as well as low skin elasticity (e.g. due to age). Other risk factors are related to your activity. People with jobs that require a lot of time on their feet (e.g. nurses, waiters or cabin crew) are at a higher risk of developing corns. One of the most prominent risk factors, however, is the choice footwear. We too often choose our shoes by appearance and do not pay enough attention to a good fit and comfort.