Hip injuries are among the most common dance injuries (snapping hip syndrome, hip impingement, labral tears, hip flexor tendonitis, hip bursitis, and sacroiliac joint dysfunction). Achilles tendonitis, trigger toe, and ankle impingement are all examples of foot and ankle injuries. Patellofemoral pain syndrome is caused by knee injury. Back problems result from overuse, particularly in dancers who train with rigid techniques that don't allow for natural movement of the spine. Dancers tend to suffer from multiple injuries because of the intensity of training and the lack of fitness needed to perform at a high level. In addition, many dancers do not give their bodies enough time to recover between classes or performances. This can lead to stress fractures, which are common in dancers who use hard surfaces as practice mats. Dancers should learn proper technique and exercise awareness so they don't injure themselves while dancing. They should also learn how to properly warm up and cool down before and after class or a performance. A good trainer can help dancers develop safe practices that will prevent them from injuring themselves during intense workouts.