Children grinding teeth is caused by the continuous contraction of chewing muscles, children teething, itchy gums; accumulation of food, indigestion, food reflux, there may be a baby grinding teeth. 1, children during the teething period, especially has grown one or two teeth or so, then this time the gums very to her by coming to chew to rub their teeth, to relieve the gum itching symptoms or pain symptoms, this time you can give her with dental gum, while the gum, soak a little cooler, so that it will be able to relieve his teething discomfort, short-term use of this will not lead to children appear This is not a problem. 2, children have food reflux, such as eating too much indigestion, after lying down at night, it is easy to have food reflux, resulting in irritating coughing in the anorexia, this situation, you need to give children to eat some probiotics, regulate the gastrointestinal tract, such as: bacillus subtilis and bifidobacterium can words to relieve the symptoms. If the probiotic effect is not good, you can cooperate with the four mill soup, must eat less and more meals, do not eat too greasy dinner. Let the child lie down at an angle of 30 degrees to relieve the symptoms.