This means that the patient has symptoms of greasiness. 4, various causes of liver disease and gallbladder disease. Because liver cells can secrete bile salt, which has the function of digesting fat, liver diseases cause damage to liver cells. As a result, the production of bile salts decreases and the ability to digest fat decreases, causing greasiness. Acute gallbladder inflammation has poor bile secretion ability and poor fat digestion ability, resulting in greasiness. 5. Early pregnancy reaction, nausea and greasiness can occur in early pregnancy, which is a normal physiological phenomenon. Therefore, once nausea and greasiness appear, it is recommended to visit the hospital to actively find the cause and treat the original disease. It is recommended to have a light diet and avoid spicy, oily and stimulating foods.