The etiology of dermatomyositis is not related to diet, and there are no special contraindications to diet, but you need to eat a reasonable diet and ensure balanced nutrition. Dermatomyositis is an autoimmune disease of the skin and muscles, which can be manifested as purplish-red spots on the eyelids, papules, skin heterochromia, symmetrical muscle weakness, and difficulty in chewing. The etiology of the disease may be due to infections, genetic factors, malignant tumors, drugs and other factors, and is generally not related to diet. Dermatomyositis is not contraindicated in terms of diet. However, due to the long duration of the disease, the diet should be reasonable, eat more nutritious food rich in vitamins and proteins to ensure balanced nutrition, which is conducive to the body’s resistance to the disease. Dermatomyositis patients are advised to seek timely medical attention and active treatment to avoid aggravation of the disease, specific dietary issues can consult a doctor.