Checking your newborn's temperature is an important part of ensuring their health and wellbeing, and knowing how often to do it is essential. The first thing to know is that newborns are more prone to sudden temperature changes than adults, so checking their temperature regularly is a must. A newborn's temperature should be checked at least once a day, preferably twice a day. Checking their temperature more often is also a good idea, especially if they are unwell or have been exposed to high temperatures. It is important to note that newborns are unable to regulate their own body temperature, so it is important to monitor it to make sure it stays within the normal range. A newborn's normal temperature can range from 97.7 to 99.5 degrees Fahrenheit (36.4 to 37.5 degrees Celsius). If your baby’s temperature is outside of this range, it could be a sign of illness or infection and should be addressed immediately. When taking your baby's temperature, it is important to use the correct thermometer. The most accurate way to measure your baby's temperature is with a rectal thermometer, which is designed to be inserted into the rectum. You should also make sure to use a digital thermometer, as these are the most accurate. It is also important to make sure the thermometer is clean before and after use. To do this, wipe the thermometer down with rubbing alcohol before and after each use. You should also make sure to read the instructions that come with your thermometer, as there may be specific instructions for taking your baby's temperature. In addition to checking your baby's temperature with a thermometer, you can also check for signs of fever. If your baby is feeling warm or has flushed cheeks, these could be signs of a fever. You should also keep an eye out for other signs of illness, such as excessive crying, difficulty sleeping, or lack of appetite. Finally, it is important to remember that a fever is not always a sign of illness. A fever could be a sign of a teething baby, or it could be caused by a vaccine. If you are unsure whether your baby has a fever, you should always contact your pediatrician. In summary, it is important to check your baby's temperature regularly to ensure that it stays within the normal range. The most accurate way to measure your baby's temperature is with a rectal thermometer. You should also keep an eye out for signs of fever, such as flushed cheeks or excessive crying. If you are ever unsure whether your baby has a fever, you should always contact your pediatrician.