Back discomfort is usually caused by a variety of reasons, depending on the cause, the department will be different.1. If the back pain is caused by back fasciitis, or cervical dislocation of the small joints of the thoracic spine, you can register with the Department of Spine Surgery or Rehabilitation Medicine. If you want to make a clear diagnosis or do not want to do physical therapy, you can register with the Department of Spine Surgery, which generally has a higher level of diagnosis and can also take oral medication or apply topical creams to relieve symptoms. The treatment means of rehabilitation medicine is more, you can apply physiotherapy, acupuncture and massage therapy, cervical traction or massage therapy to relieve symptoms.2, other diseases can also cause back pain, if the left side of the back pain, combined with pain in the anterior thoracic region, chest tightness, palpitations and other conditions, it may be cardiovascular problems, you should go to the cardiovascular department. If the right side of the back pain is accompanied by right upper abdominal very obvious colic, it may be acute cholecystitis, can be registered gastroenterology or general surgery.