The following symptoms are common in rhomboid strain: First, there is obvious pain and deep pressure pain between the inner edge of the scapula and the spine of the thoracic vertebrae, the rhomboid muscle starts and ends between the scapula and the spine of the thoracic vertebrae, and after the strain a fixed pain point can be formed between the starting and ending points of the muscle. Secondly, after rhomboid muscle strain, the patient often contains the chest state, the distance between the scapula and the spine increases compared with normal, at the same time, the scapula will appear sinking phenomenon, the strength of rhomboid muscle is weakened, not enough to pull the scapula to the spine midline, and can not make the scapula lift up. Thirdly, the spastic hard nodules inside the rhomboid muscle can be touched between the scapula and the spine, and the nodules have obvious pressure pain, and the stiffness and pain of the rhomboid muscle can be relieved immediately after rubbing it out.