The causes of acid reflux and heartburn in the sixth month of pregnancy are dietary factors, functional factors and disease factors, including improper diet, slowed gastrointestinal motility, reflux esophagitis, peptic ulcer, etc. The treatment of acid reflux and heartburn in pregnant women requires targeted treatment after clarifying the cause. 1, improper diet: eating too much or eating cold, spicy and stimulating food, eating sweets and greasy food can cause increased secretion of stomach acid. This can lead to acid reflux, heartburn and other symptoms. At this time, you need to adjust the diet structure, light diet, pay attention to reasonable dietary mix, can be appropriate intake such as fish soup, rice soup and other easily digestible food, avoid cold stimulation; 2, gastrointestinal peristalsis slowed: six months of pregnancy in the middle of pregnancy, progesterone increase, the uterus will increase pressure on the gastrointestinal tract, so that the gastrointestinal peristalsis slowed down, easy to cause acid reflux, heartburn and other symptoms, through exercise, such as slow walking, yoga, or eating high The symptoms of acid reflux and heartburn can be caused by exercise, such as slow walking, yoga, or eating high-fiber vegetables to stimulate gastrointestinal motility; 3. It is recommended that you should not eat two hours before bedtime, do not lie on your back immediately after meals, you can put your upper body up about 30 degrees to help reduce symptoms, and you can also take medication, such as proton pump inhibitors including omeprazole and lansoprazole as prescribed by your doctor. 4. If the symptoms are not relieved, it is necessary to be alert to the presence of organic lesions of the digestive tract, such as peptic ulcer, digestive tract tumor, etc. It is necessary to promptly consult a doctor to identify the cause, treat the cause, and carry out drug and surgical treatment under the guidance of the doctor. As a special group of people, pregnant women need to follow medical advice to avoid affecting the healthy development of the fetus.