Hip fractures are often associated with a high rate of poor prognosis, yet previous studies have not clearly identified which patients should avoid surgical treatment. The purpose of this study was to identify factors that can predict poor prognosis after hip fracture surgery and thus help develop a treatment plan. The authors conducted a retrospective study of 965 patients undergoing hip fracture surgery, collecting information on patients’ age, sex, coexisting conditions, and place of injury (home, outdoor, nursing home), and analyzing patient mortality and hospital discharge transition. Long-term care was required after surgery. The researchers believe that they expected to find patients with hip fractures who were not suitable for surgery even if they were in a stable general condition, but instead of finding them, they found that even the very old patients could still benefit from surgery. This study shows that even in very old patients with multiple coexisting conditions, surgical treatment is significantly more effective than conservative treatment and the probability of a better prognosis is sufficient for people to choose surgical treatment. The study showed that all patients with hip fractures have the potential to benefit from surgical treatment, and no category of patients was found that should be treated conservatively, even in the very old patients with multiple co-morbidities, and the results did not indicate that surgical treatment was contraindicated, with two-thirds of them surviving and being discharged home.