A foot with a bunion that is shifted inward may be the result of a bunion, rheumatoid arthritis, trauma, developmental deformity of the toe, or excessive surgical correction. 1. Bunion: Patients with bunion may experience inward deviation and displacement of the big toe. 2. Rheumatoid arthritis: Patients with rheumatoid arthritis may experience pain and swelling in the joints of the toes and other joints, and in severe cases, deformities may occur. 3. Trauma: If trauma causes a fracture of the thumb and the patient’s treatment is incomplete, the deformed healing of the fracture may appear to one side of the symptoms of deviation. 4. Developmental deformities of the toes: Abnormal development of the foot may cause the bunion to be skewed to the outside. 5. Surgical overcorrection: If a patient is overcorrected during surgery to correct a bunion, a bunion may occur and cause the big toe to be skewed to the inside. If this symptom occurs, the patient should go to the hospital in time to check the cause of the disease, and carry out appropriate treatment after clarifying the cause of the disease.