A portable or wearable fracture treatment device includes a splint unit that is attached to an affected part of a forearm of a patient and a part surrounding the affected part so that the affected part is supported along a longitudinal direction of the forearm, an upper arm attachment unit that attaches the splint unit to an upper arm of the patient, a fixing unit that fixes a part of the patient that is between the affected part of the forearm and an end of a hand of the patient, and a traction unit that is supported by the splint unit. The traction unit pulls the affected part of the forearm of the patient in a direction from the affected part of the forearm toward the hand of the patient by pulling the fixing unit in the direction from the affected part of the forearm toward the hand of the patient.
