With spring in full bloom and everything coming back to life, it is a great season for trekking. However, many tourists often suffer from “marching fractures” that cause pain in the front of the foot, which affects walking and ultimately spoils the fun. So, what causes “marching fracture”, what are the symptoms of “marching” fracture, and how can we treat and prevent “marching fracture” in time? The earliest known “marching fracture” occurred in the Prussian army in 1855 and was called a “marching fracture” because it often occurred in recruits. In recent years, due to the dramatic increase in the population of recreational and competitive sports, this fatigue fracture, which used to occur only in recruits, is also commonly seen in people and athletes, such as the recent fracture of the navicular bone of Yao Ming, the “Little Giant”, which was caused by fatigue due to long-term sports. In fact, “marching fracture” is a fatigue fracture caused by cumulative strain injury. It occurs in athletes who run and jump too much, recruits who march long distances, dancers and so on. The fracture occurs when prolonged, repeated and slight direct or indirect external forces are concentrated on a certain point of the bone and, in addition, is related to the patient’s physical condition. Thus, even the accumulation of forces within the physiological range can promote fatigue fractures. Fatigue fractures are essentially “stress fractures” that do not displace but heal slowly, severely impairing the patient’s mobility. The second metatarsal is the most common site, because the heel and metatarsal bones are the only ligaments and tendons connecting the arch of the foot, and when the arch of the foot collapses and increases the downward pressure after long-distance walking or exercise, the second metatarsal, which normally carries less weight, increases in weight, and once the concentrated stress exceeds the loading capacity of the trabeculae, the trabecular fracture occurs first; when the stress continues to act, it When the stress continues to act, it leads to chronic bone breakage or bone fracture, especially in patients with osteoporosis and short first metatarsal bone or forefoot palmar widening, more likely to occur fatigue fracture. So, what should be done if a “march fracture” occurs during a spring trip? If you experience dorsal foot pain during the trip, especially the so-called “no pain when you walk, but pain when you walk, and more and more pain when you walk”, and if you have obvious pain and swelling at the second metatarsal when you press lightly, you should highly suspect fatigue fracture. At this point, you should immediately terminate your travel plans, take a rest, avoid weight-bearing and walking movements of the affected foot, and go to a nearby hospital for medical attention. If the fracture occurs in a situation where it is not convenient to stop the activity in time, such as during climbing, it is better to ask someone to support you and avoid weight-bearing and movement of the foot as much as possible. In addition, temporary crutches or homemade crutches and crutches can be purchased to help relieve the weight of the affected foot if possible. If the patient has a serious fracture, external fixation is required. If conditions do not allow, a “temporary splint” can be made locally, using long branches or slats, or even folded pillow cushions or blankets, and these “temporary splints” can be applied to the affected area by means of a rope or bandage. If the swelling of the lower limb is serious, the affected limb should be elevated. If the swelling of the lower extremity is severe, the affected limb should be elevated. As soon as the condition allows, a hospital visit should be made. The diagnosis of fatigue fractures is easy for orthopedic surgeons. Patients usually have a short history of frequent jumping, long-distance running and long-distance walking. The fracture line is usually visible on X-rays after 3-4 weeks and is surrounded by bone scabs; in patients with long duration of disease, the bone scabs around the fracture tend to increase, but the fracture line is clearer and The fracture end has whitening and sclerotic signs. Therefore, the diagnosis of “marching fracture” can generally be made accurately by the above points. Once a march fracture is diagnosed, it needs to be treated promptly. Since fatigue fractures of the second metatarsal do not displace, they are usually treated conservatively by rest and avoiding weight bearing on the foot. In cases of significant swelling, the affected limb should be elevated and correct functional rehabilitation exercises should be provided after the injury. However, it should be noted that fatigue fractures that are diagnosed late are more difficult to heal because of the sclerosis of the fracture end, and microcurrent, osteoinduction and growth factors are often recommended to promote fracture healing. Prevention of fatigue fractures is important. First of all, we should pay attention to strengthen physical exercise, arrange work and exercise properly, and avoid doing the same action repeatedly for a long time; when exercising, we should master the amount of exercise and exercise essentials according to our physical condition, and do the preparation activities adequately; for people who usually lack exercise, we should increase the amount of exercise gradually; before engaging in difficult sports, it is better to receive sports medical consultation and learn some general knowledge of sports physiology and health; wear good sportswear and flexible sports shoes, avoid running and jumping sports on too hard ground; for travel enthusiasts, such as for long-distance travel, it is best to choose 1 to 2 places, so that you can not count the time, free activities; choose a pair of soft, comfortable, well-fitting shoes, do not wear leather shoes, especially women, do not wear high-heeled leather shoes for travel or sports for the sake of a moment of beauty, which is more likely to lead to “marching fracture”. Do not walk long distances for a short time and avoid walking on rugged mountain roads; travel long distances and be sure to take proper rest on the way and do foot massage. Soak both feet with warm water at night, apply blood-activating drugs externally, and elevate both feet during sleep to promote blood circulation. For the old and frail and lack of exercise, it is best to make multi-way travel and avoid long-distance trekking; in terms of diet, pay attention to nutritious, balanced and comprehensive, and properly supplement the intake of vitamin D and calcium, which can effectively prevent the occurrence of “marching fracture”. Therefore, as long as the above points are followed for proper prevention, the occurrence of “marching fracture” can be avoided and life and work will not be affected.