Walking with an unstraightened back may be caused by bad posture, osteoporosis, ankylosing spondylitis, etc. Generally speaking, the symptoms can be relieved by improving the walking posture, and, if necessary, medicines such as vitamin D drops and celecoxib capsules can be used for treatment. 1. Poor posture: In daily life, when walking or sitting or standing, not paying attention to the posture for a long time may lead to curvature of the spine, and the phenomenon of walking with an unstraightened back, and the symptoms can be relieved by correcting the poor posture. 2. Osteoporosis: Bone mass decreases and bone fragility increases due to endocrine diseases, reduction of sex hormones and other factors. Vitamin D drops, calcium carbonate D3 tablets and other drugs can be used for treatment under doctor’s guidance. 3. Ankylosing spondylitis: Chronic inflammatory lesions of the spine due to genetic, environmental and infectious factors. When you can’t walk straight, the condition may be more serious and can be treated with drugs such as celecoxib capsules and tofacitib citrate tablets under the guidance of a doctor. Walking back straight, may also be related to other diseases, a single symptom can not determine the specific cause, it is recommended to go to the hospital in time for examination, and under the guidance of the doctor based on clinical symptoms to determine.