Boat-shaped abdomen is mainly manifested as the shape of the abdomen is like a boat, when lying on the back, the anterior abdominal wall will fall obviously, and even will be sunken. Boat-shaped abdomen is often the existence of extreme malnutrition in patients, mostly seen in malnutrition and extreme wasting, patients due to the subcutaneous fat completely disappeared, when lying down the abdomen will have obvious depression like a boat, but also the limbs and the face of the abnormal wasting, skin laxity and other phenomena. Boat-shaped abdomen is often an unhealthy state, may be caused by diseases, such as tuberculosis mycobacteria infection or malignant tumors and other chronic wasting diseases, due to long-term consumption of body nutrients, coupled with dietary nutrients can not be adequate intake, will easily cause this phenomenon. If you have a navicular abdomen, you should go to the hospital in time to find out the cause and then treat the cause to improve the patient’s symptoms, as well as to increase nutrition in the diet.