Separation of the nail cap from the flesh of the foot, known as a nail bed separation, can heal on its own, depending on the specific cause of the separation. If it is caused by trauma, it may heal on its own. If it is caused by an infection, it usually does not heal on its own. Mild separation of the toenail cap from the flesh may occur when the toenail is subjected to severe crushing, impact, etc. Over time, the gradual growth of the toenail and the flesh can reconnect the two and achieve self-healing. In cases of fungal infections that cause onychomycosis and onychomycosis, the condition cannot heal itself because the affected area is already diseased. Symptoms such as thickening, yellowing, and hollowing of the nail bed may also occur and may be contagious. No matter what the cause of the separation of the nail bed, you should go to the hospital in a timely manner to clarify the cause of the disease and then follow the doctor’s instructions for treatment to avoid delaying the condition.