There is no special dietary contraindication for tenosynovitis, a normal diet is sufficient. Treatment can be conservative or surgical. Tenosynovitis is a chronic, sterile inflammation of the tendon sheaths caused by long-term friction. Tenosynovitis of the hands and wrists is the most common, mostly seen in handicraftsmen, typists and so on. The cause of tenosynovitis is not related to diet, so there are no dietary contraindications, just a normal diet. For patients with tenosynovitis, treatment options include conservative and surgical treatments. Conservative treatment is usually used in the initial treatment, and the treatment includes limiting the activity of the affected limb and short-term use of non-steroidal anti-inflammatory drugs such as aspirin and celecoxib. Local glucocorticosteroids may be injected for those whose symptoms do not improve significantly with conservative treatment. The use of medication should follow the doctor’s instructions. When non-surgical treatment is ineffective, tenotomy and decompression surgery can be considered, and after the operation, a normal diet can be maintained. If you feel unwell, please consult a doctor.