Every 5 days to take a capsule of dexamethasone on the femur has no effect depends on the individual physique, the degree of the disease and the use of treatment, generally speaking, the short-term use of dexamethasone on the femur did not have any effect, but long-term use may have an impact. Dexamethasone is a class of hormone drugs, with anti-inflammatory, anti-toxicity, anti-allergy, anti-rheumatism and other effects, clinical use is widespread. It can be used for bronchial asthma, atopic dermatitis, infectious shock, toxic diseases, various inflammation and edema. The use of dexamethasone should be based on the different conditions and populations, the use of methods, dosage, time and effect are not the same, so the specific dosage and time must be taken in accordance with the doctor’s instructions, in general, the short-term use of the femoral head will not have adverse effects. If dexamethasone is used for a long period of time, it may lead to osteoporosis, which may cause bone fracture, cartilage collapse, etc. Due to the poor blood supply to the femoral head itself, necrosis of the femoral head may also occur. The application of dexamethasone must be carried out under the guidance of a doctor, and if any discomfort occurs during the use of the drug, it should be communicated with the doctor in time for active treatment.