Constipation is usually caused by improper diet or disease; however, if rice flour is consumed by infants and toddlers when they add complementary foods, constipation may occur if it is not consumed properly. Rice flour is usually made from rice and usually does not cause constipation after consumption. For adults, if constipation occurs, it may be caused by poor bowel habits, such as inhibiting bowel movements, taking too long to go to the toilet, and inattentiveness in bowel movements. In addition, the dietary intake of vegetables, fruits and coarse grains containing dietary fiber is low, as well as the lack of exercise such as sedentary and bed-ridden conditions. In addition, certain intestinal diseases also tend to cause constipation. Constipation can be relieved by exercising more, eating more fresh vegetables and fruits, etc. If necessary, you can seek medical advice to clarify the cause and treat the symptoms. Infants and toddlers, especially those around 6 months old, start to add complementary foods, and when they transition from dairy products to eating relatively solid foods such as rice flour, they need a period of time to adapt due to imperfect gastrointestinal function, and at the same time, if the intake of fiber in food is reduced, they are very prone to constipation when they start to add complementary foods. At this time, you can stop using rice flour and take probiotics as prescribed by your doctor to adjust the intestinal flora, which will help the bowels to flow smoothly.