Corns are a common clinical lesion caused by the accumulation of skin cuticles. For the treatment of corns, there are three main clinical approaches, one is freezing; another is laser; and another is surgery. For different areas of corns, different methods can achieve good treatment results. For the smaller extent of corns, the application of freezing or laser, the effect is relatively good, and the recovery is relatively fast. For larger corns, surgery may be required, and stitches may need to be removed after surgery, which can be relatively painful. Medication is also available.