The child appears to be blue in the triangle, parents must pay attention to it, it may be caused by the following conditions: to see if the child has congenital heart disease or pneumonia, if this is the case, it is best to take the child to the hospital to check the number of breaths per minute. There are two main ways to calculate the number of breaths, one is to let go of the abdomen, the child is abdominal breathing, you can count the number of times from the child’s abdomen together and down. Take the cotton to pull a little hair on the child’s nostrils, you can see the number of times the cotton floss floating. You can also count the number of times the cotton floss floats. If the number of times does not exceed 60, there is no possibility of pneumonia. There are also problems with the spleen, stomach and liver. Some children do not sleep well and do not like to eat, which is a problem with the spleen and stomach. Children do not necessarily have the typical performance, usually let the child eat more vegetables or fruits, supplement enough protein or vitamins can be.