Hungry stools can be determined by the frequency, nature and color of the stools. Hungry stools are caused by improper feeding, such as overfeeding and underfeeding can cause hungry stools. Hungry stools are caused by improper feeding, such as overfeeding and underfeeding. The frequency of stools increases when hungry stools occur, and the number of stools is about 4-6 times a day. Normal stools are relatively thin and thick, but in the case of starvation stools, the contents of the intestines are discharged in excess, causing the stools to become thinner and thinner in nature. Hungry stools remain in the intestines for a relatively short period of time, so the stools are not neutralized by the alkaline substances in the intestinal system and are acidic in nature. The color of the stools is yellowish-green in color, and there is a certain fishy smell when they are excreted.