A 9-month-old baby’s sweating should be judged by whether the sweating is caused by a hot room temperature or by wearing too thick or too much clothing, and the baby’s temperature can be judged by the neck temperature, which is the baby’s actual temperature. If this is not the case, a 9-month-old baby with excessive sweating should pay attention to rickets and hyperthyroidism, and observe whether the 9-month-old baby is also irritable, irritable, sleepless at night, night terrors, etc. If this is the case, you need to improve the relevant laboratory tests to further clarify the diagnosis, and if this is the cause, you should actively carry out targeted treatment to alleviate the sweating. Excessive sweating will be relieved.