Crying children may be introverted as well as sensitive personality, if the personality is more introverted, easy to low self-esteem, encounter problems and frustration of poor tolerance, and lack of independent ability to deal with problems, its easy to cry. If a child is particularly weepy, it is possible that he or she has a particularly introverted, sensitive, low self-esteem personality problem. It is also possible that the child is easily dependent on others, and this character trait is easy to use crying to attract the attention of others and seek help from parents when they encounter problems. So when there is frustration, it is easy to cry, which is also a more common cause of personality.