Drooling Saliva is actually saliva secreted by the salivary glands. Saliva not only has the role of wetting the mouth, dissolve food and easy to swallow, but also can be digested food carbohydrates, but also has a bactericidal effect, to prevent the growth and reproduction of bacteria in the oral cavity. 3 ~ 4 months of infants salivary glands are gradually mature, saliva secretion increased, but at this time the child swallowing saliva is not yet functionally sound, the mouth is shallow, the closed lips and swallowing action is not yet coordinated, the performance is often drooling. After the child grows to 6 to 7 months, due to the emerging teeth on the oral nerve stimulation, resulting in a large amount of saliva secretion, then drooling more. Therefore, the above two cases belong to the normal physiological, not pathological, until the child gradually grows up, swallowing function development is complete, this physiological drooling phenomenon will naturally disappear. Calf bending leg bending in the summer and fall seasons, a few months of infants less clothed, parents will sometimes be surprised to find that the two little baby’s calves a little inward bending, thought it was rickets. In fact, this calf inward bending is not rickets, but a natural physiological phenomenon. The reason is that the child’s body in the mother’s womb in a state of flexion, so that after birth for some time to look a little bent calves. In addition, from the proportions of the body of the little baby, the head is large, the upper body is longer than the legs, it looks like the two calves are short and bent. This bending of the legs will gradually correct itself as the child grows. Embrace reflex In infants under 3 to 4 months of age, when the mother or family members suddenly walk to the child’s side or make a loud noise, the child will be found to have two arms outstretched and straightened, and then flexed inward to the chest, in the form of an embrace, and we will think that the child has a cramp. In fact, this is not a cramp, but a physiological phenomenon, medically known as the embrace reflex. The lack of this embrace reflex indicates that the child’s brain is not mature, and that there may be neurological damage or lesions, intracranial hemorrhage, or other intracranial disorders. Apnea Careful mothers sometimes find that their newborns’ breathing is not only irregular, but sometimes even apneic, and are alarmed and upset by this. In fact, irregular breathing and apnea is a common phenomenon in newborns, especially premature babies, which is related to the immaturity of their brain and nervous system development. Apnea time is usually less than 10 seconds, and there is no other discomfort symptoms, can be considered a normal physiological phenomenon, do not have to worry about. Growing pains Some young children play well during the day, at night will complain of leg pain, parents carefully examined no redness, swelling and other phenomena, the medical situation is called growing pains. The reason for this is that young children’s rapid growth and development, the legs are overburdened, the lower limbs of the bone end of the congestion, thus causing leg pain, which is also a normal physiological phenomenon. This kind of growing pains is characterized by mild swelling and pain in the calves, which is heavier in the afternoon and evening, but it will gradually disappear as the child grows. White urine In winter, some infants and young children urinate into the potty in a rice-water-like urine, many parents think it is celiac disease and nervous. In fact, this amorphous urine is due to the children’s metabolism, especially eating foods containing oxalate and carbonate more, such as spinach, amaranth and other leafy vegetables or bananas, oranges or persimmons and other fruits, oxalate and carbonate in the urine will increase. When these substances with the urine out of the body, the cold will have urate or phosphate and other salt crystals precipitation and become mixed, like rice water. This kind of situation mainly occurs in the cold climate of the season, mostly in infants and young children, usually this kind of urine is harmless to the child’s health, as long as the child is usually fed more boiled water or orally some vitamin C, after a few days of rice-water-like urine will disappear.