Nail extraction surgery is mostly used in cases where the nail groove has invaded the nail and formed a subnail abscess, ingrown nail co-infection, etc. However, nail extraction surgery is not recommended in the early stages or in chronic cases of nail groove infections, as it may lead to deformities and difficulty in growth of the toenail. Onychomycosis is a purulent bacterial infection of the nail groove and its surrounding tissues formed on both sides of the nail. In the early stage of onychomycosis there is no need for nail extraction surgery, and it is usually cured on its own in 2~3 weeks through effective medication to fight infection, disinfection and other treatments, and regular medication changes. Chronic onychomycosis is also generally not recommended to use nail extraction surgery, because the complete removal of the nail will easily lead to deformity of the nail, growth difficulties and so on. Nail extraction surgery is only recommended when there is a subnail abscess or an ingrown nail combined with an infection. After the surgery, you should pay attention to rest, do a good job of local skin cleaning, avoid walking for a long time, if there is discomfort during the period, it is recommended to consult a doctor in time.