The phrase “a hundred days to move the bones” should be heard since childhood, probably means that the injured bones or “tendons” need to recuperate about three months to recover. Bone, is the bone, bones, moving bone is moving the bones, fracture ah, surgical trauma ah, bone contusion, bone defects are moving the bones. The tendon is not very well explained, because the tendon in the common language, there is no anatomical corresponding tissue, probably muscles, tendons, ligaments and other soft tissues. So the range of tendon injuries is much broader, muscle strains, tendon tears, ligament ruptures and many other types of soft tissue injuries are all tendon injuries. The “100 days” should be a summary of the infinite wisdom and countless experiences of previous generations. From modern pathophysiology, the repair of bones and soft tissues takes about two to three months. The repair of fractures goes through roughly four stages: first, the fibrous scab phase, in which granulation tissue transformed by bleeding and hematoma fills and connects the broken bones. It takes about 6-8 weeks for the granulation tissue to transform into a fibrous scab, which is much stronger and stronger, but still soft, and may cause deformation or healing of the bone into an angle if it is not fixed firmly or if the bone is subjected to too much stress. Then comes the mature scab stage, when calcium salts are deposited more and more into the fibers and bone trabeculae are gradually formed. The more trabeculae there are, the better the distribution of trabeculae and the stronger the bones. Finally, about 8-12 weeks, the fracture area is connected by mature bone scabs, that is, the bones grow together. 8-12 weeks is not 100 days, so the “bone” 100 days is very scientific. Of course, after that, the bones have to be altered more reasonably according to the stresses they are subjected to, and this process is longer, taking a year for children and even 2-4 years for adults. The bone itself can heal and grow, so if the fracture is well healed, it will be the same as before. However, muscle tendons and ligaments are different, they do not heal by themselves and require scarring to join the broken or torn area, called scar healing. In 3-4 weeks, a large number of fibroblasts proliferate in the area of the tendon rupture to join the rupture together, and in 5-6 weeks, basic healing is achieved through scarring. in 6-8 weeks, these scar tissues change and the collagen fibers begin to align parallel to the direction of the force, which makes them stronger. So, the “wounded tendon” is probably healed in 100 days as well. A few series of pictures (x-rays) are shown to give a better picture. The humeral stem fracture has started to heal with some bone scabs, but the bone marrow cavity has not yet opened, the bone cortex has not yet grown and healed, but the strength is not enough, and the bone shaping and reconstruction is not yet complete. The above is the reasonableness of the saying “100 days for a broken tendon”. But this proverb is still incomplete. And those figures are only physiopathological observations, in fact, we can not be injured after not to deal with it, waiting for it to heal naturally, but there will be surgery, external fixation and other methods to help us restore function faster. Note that I am talking about faster return to function here, because the healing time of soft tissues such as bones and tendons themselves will not be accelerated by much. The reason why we can now start to resume activities very early after surgery is not that there are now ways to make the bones or soft tissues heal very quickly, but that material science and engineering and surgical techniques have improved and ways have been found to fix the breaks very firmly without interfering with the healing of the tissues themselves during moderate amounts of activity. So there are many surgeries where you can walk on the ground in a week or two, but when you are reviewed, your doctor will still need to take several x-rays because the bone itself still takes 8-12 weeks to heal and the doctor needs to make sure that the bone itself is healed enough before he will allow you to do more intense activities. In this way, should we still take a good 100 days to recuperate after the injury? For the bones and soft tissues themselves, these 100 days of proper braking is necessary. But the human body is not only the injured part of the bones and ligaments, the human body is a complex functional whole. The bed rest “rest” is not “sickness”, but will really develop a disease. The so-called “life is movement”, human bones, joints, muscles, ligaments, tendons and other motor systems, to maintain normal function must maintain a moderate degree of exercise stimulation. Excessive recuperation can aggravate muscle atrophy in the injured limb, cause adhesions in the injured or operated joint or even in the adjacent joints, pressure sores in the bedridden area, deep vein thrombosis and phlebitis in the lower limb or distal limb, and decreased proprioception (that is, the ability to feel the position and movement of the limb) and decreased coordination, making the overall function of the limb decline. To put it in layman’s terms, what should grow strong, should not grow also grow strong. I once saw a patient who was operated on for a cervical spine injury in a car accident, and after his neck was healed, he was treated for three or four months for both shoulders. Because of the cervical spine surgery, they are afraid to move anything, even the bed can not get up, the family is to take care of everything, even eating and washing the face and so are others to help, recuperation even do not have to lift the arm. As a result, when the bones in the cervical spine were healed in two or three months, the two shoulder joints were suffering from frozen shoulder because they hadn’t had full range of motion for a long time, and they couldn’t be lifted. It took another three to four months and a lot of pain to heal the area that was fine. It’s really a disease that comes out of the sickness. So after an injury or surgery, as long as the local condition of the injury allows, you should carry out scientific functional exercises under professional guidance as soon as possible. And in addition to the injured limb must be practiced, the rest of the body should be able to carry out activities, so as to avoid other unnecessary complications. At the same time can also maintain a good overall physical quality, more conducive to promote the recovery of local injuries. Of course, do not rely on others to help you with activities of daily living that you can do independently. When caring for patients around us, we should not really do everything, or we may really do a disservice with good intentions. Really good care is to help the patient do what he or she cannot do at all, assist him or her in what he or she can barely do, protect him or her in what he or she can do but may be in danger, and let him or her do what he or she can do on his or her own. That is the best and fastest solution for the person we care about to recover.