The treatment of left femoral neck fracture can be done by the following methods: 1. If the fracture is type I, that is, there is no obvious displacement, or even no complete fracture, just a bone fracture, then conservative treatment is possible, but bed rest is needed, generally do not carry out weight-bearing or even bending activities within 12 weeks, after 3 months you can crutch to move to the ground, the fracture can gradually heal. 2. If the fracture is of type II, either conservative treatment or surgical treatment can be chosen, but generally speaking, surgical treatment is relatively better.3. For type IV and type III fractures, the displacement is obvious and conservative treatment is ineffective, and the fracture may not even heal, so surgical incision and internal fixation should be performed.4. If the patient is older than 60 years old, the bone neck fracture should generally be Take arthroplasty, generally take half hip replacement or total hip replacement, according to different situations for different treatment.