Standing up with a broken bone and having a purple foot may be due to bleeding and bruising at the fracture site. If a patient suffers a fracture, there may be bleeding at the fracture site, which may penetrate into the subcutaneous tissue and cause the skin to turn purple, and there may be pain, swelling and other symptoms occurring at the same time. The patient may be able to improve blood circulation to the purplish area and relieve the purplish skin by braking, elevating the affected limb, and applying a compression bandage. If you are recovering from a fracture, you should pay attention to rehabilitation exercises and ensure that your diet is reasonable and nutritious. You can eat some high-protein and high-calcium foods to promote the production of bone scabs, to ensure adequate nutrition in order to heal the fracture. If a fracture occurs, you should go to the hospital in time for treatment and follow the doctor’s instructions for rehabilitation exercises.