Patients with polymyositis should avoid rough, dry and hard foods and spicy and stimulating foods, such as coarse grains, curry, wine and ginger. Polymyositis is a diffuse skeletal muscle inflammatory disease caused by infection, heredity, immunity and other factors, which can lead to pharyngeal muscle, cervical muscle weakness and proximal weakness of the limbs and other symptoms, patients with polymyositis with symptoms of dysphagia should pay attention to take a seated position when eating, and try to avoid spicy and stimulating foods such as curry, ginger, garlic, wine and other rough, dry food. Patients with polymyositis should choose soft, easy to swallow food such as porridge, noodles, rice noodles, etc. as well as foods rich in protein, vitamins, trace elements, such as eggs, milk, fruits and so on. It is recommended that patients with polymyositis go to the rheumatology and immunology department, nutrition department and other related departments in regular hospitals to obtain professional dietary advice.