Breastmilk at room temperature needs to be heated properly. The room temperature is usually around 20 degrees Celsius, which is lower than human body temperature. Breastmilk at room temperature needs to be heated to around 37 degrees Celsius before giving it to the baby. Babies have weak digestive functions, so if breastmilk at room temperature is not heated appropriately, babies may suffer from bloating, diarrhea, and other digestive symptoms after eating too cold breastmilk. However, breastmilk should not be heated to boiling, excessive heating will destroy the protein, fat and other nutrients in breastmilk, so that the nutrients in breastmilk can not meet the needs of the baby’s growth and development. Long-term consumption of over-heated breast milk at room temperature can lead to malnutrition in babies, resulting in backward growth and development. Fresh breastmilk at room temperature deteriorates faster, can only be stored for about 5 to 6 hours, and breastmilk stored at room temperature is prone to bacterial growth. If your baby is not feeling well after eating room temperature breastmilk, you should go to the hospital in time for regular treatment under the guidance of your doctor.