Back pain on the right side of the back can be caused by dorsal fasciitis, right pleural lung disease, herpes simplex virus, gallbladder disease and other factors. 1. Dorsal fasciitis: chronic strain on the back muscles or prolonged exposure to cold can lead to localized aseptic inflammation, stimulated by the inflammation can cause pain and discomfort in the back. 2. Right pleural lung disease: inflammation of the right pleura and lungs, tumors and other diseases, can cause pain in the right side of the back and other parts of the back, pain symptoms can be aggravated with the breathing movement. 3. Herpes simplex virus: localized herpes simplex virus infection on the right side of the back can stimulate the nerves, which can lead to severe pain in the local skin, early herpes is not obvious, easy to be misdiagnosed, and need to consult a doctor for a clear diagnosis. 4. Gallbladder disease: cholecystitis, gallbladder stones and other diseases can lead to right subscapularis, back and other areas of radiating pain symptoms, in addition to the performance of the right upper abdominal pain, mainly related to eating greasy food, or long-term persistent pain. There are many reasons for the pain on the right side of the back, if it is difficult to relieve, you need to consult a doctor in time, after clarifying the condition, actively carry out appropriate treatment, which will help improve the pain and other uncomfortable symptoms as soon as possible.