Fetus one week small may be caused by not getting enough nutrition, can eat some protein-rich and calcium-containing food, if necessary, through the maternal milk powder to supplement the nutrition. When the fetus is one week small, pregnant women can eat foods rich in protein, such as eggs, beef and so on. Calcium deficiency is prone to occur during pregnancy, and calcium-containing foods, such as shrimp, shellfish and other foods, can be supplemented appropriately. If the pregnant woman’s appetite is poor, she can drink appropriate maternal milk powder to supplement the nutrients that can not be obtained from the diet. Fetus small one week at the same time also need to eat some fresh vegetables and fruits, to ensure that the food of the full range of nutrients, in order to maintain a balanced body nutrition. Avoid spicy and stimulating foods, cold and greasy foods, and take regular pregnancy tests. If the phenomenon of one-week small fetus occurs for a long time, it is recommended to go to the hospital in time to check whether there is a situation of fetal growth and development restriction, and then take treatment.