The toe cracking is a specific analysis, there may be several cases: 1, some patients cracked toes refers to the toe area of the skin cracking, if the skin cracking occurs in the toe seam area, the most common case is the occurrence of fungal infection, also known as tinea pedis. 2, there are patients may be in the back of the toe or other parts of the skin cracking, this situation may be the occurrence of eczema, is caused by skin allergies. This is a disease that often occurs after a long period of time when there is significant local keratinization and hyperplasia, and then there is a significant dry cracking. 3, there are also patients who have cracked toes because the toenail is cracked, and if the cracking occurs in the small toe area and presents no unusual symptoms or discomfort for many years, this is not a disease, but a genetic manifestation. 4, There are also patients who have split toes due to the occurrence of gray nails, which is a fungal infection that causes nail fungus. 5. There are also patients who have split toes due to trauma that causes the toe nail to break.