If there is a heavy feeling in the back, it may be caused by the following reasons: 1, by a strain of the back muscles, thus feeling heavy in the back, common in people who often exercise their back muscles or often carry things. 2, there are neurological sensory abnormalities, thus stimulating the local muscles, so that the patient’s back muscles spasm and thus appear heavy feeling. For example, cervical spondylosis or thoracic spine small joint dislocation, compression to the nerve roots of the shoulders and back, thus appearing this feeling. 3, in sleep because the mattress is too soft or the bed board is too hard, will force the muscles of the back to remain tense for a long time, resulting in fatigue damage to the back muscles, the feeling of heaviness and tightness. Usually you can exercise moderately, relax the muscles or change the mattress, and the symptoms will disappear naturally.