Decreased tone of the lower esophageal sphincter is one of the symptoms of scleroderma esophagus, which refers to scleroderma, also known as progressive systemic sclerosis, involving the esophageal musculature to develop its kinetic abnormalities. Scleroderma is a connective tissue disease that affects the fibrous tissue and small blood vessels of several organs. When the esophagus is involved, it leads to esophageal smooth muscle spasm and ischemia, as well as smooth muscle atrophy and submucosal collagen deposition and fibrosis formation. Raynaud’s phenomenon is often an early manifestation of PSS. The sites of capillary dilatation seen in PSS are usually the sites of predilection for Raynaud’s phenomenon, namely the face, tongue, lips, hands, and upper chest. In scleroderma, 95% of patients have Raynaud’s phenomenon, and 75% of them have Raynaud’s phenomenon as the first symptom. These patients often have visceral damage, and the prognosis and final outcome of scleroderma depends largely on the extent and severity of vascular damage. Dietary precautions for lower esophageal sphincter tone decline: 1, diet should pay attention to light, more vegetable porridge, noodle soup and other foods that are easy to digest and absorb is better. 2, can eat more fresh fruits and vegetables to ensure the intake of vitamins. 3.Give liquid or semi-liquid food, such as various kinds of porridge, rice soup, etc. 4.It is advisable to eat foods with high collagen protein content, sticky and easy to digest and absorb foods, and soft foods. 5. Avoid eating rough food, dry food and powdered food that is not easy to swallow.