Fifth metatarsal base fracture of the left foot can be treated conservatively, surgically and medically. 1. Conservative treatment: If the fracture of the base of the fifth metatarsal of the left foot is not dislocated or displaced, or if it is only mildly displaced, conservative treatment such as cast or brace fixation can be considered. 2. Surgical treatment: If the displacement of the base of the fifth metatarsal fracture is serious and there are indications for surgery, the patient should undergo surgical reduction and internal fixation after reduction. 3. Pharmacological treatment: In the above treatment process, medication can be given symptomatically, such as Mai Zhi Ling, etc. If the pain is severe, Meloxicam can be taken. If there is a fracture of the base of the fifth metatarsal of the left foot, it is recommended to go to the hospital for early treatment. All of the above medications should be used under the guidance of a doctor or the advice of a pharmacist, avoid self-medication.