There are many reasons for the low self-esteem: 1. bad childhood experiences, such as parents always criticize the child, do not accept the child, verbally give the child a lot of negativity, this time easy to let the child has no way to accept themselves and become particularly low self-esteem, their ability, appearance, family have a lot of self-evaluation lower performance. 2. encountered a lot of setbacks, especially set too high goals, the child has a lot of perfectionist ideas about himself. The problem of depression, for example, is that patients with depression tend to have low self-esteem, and their self-esteem is not objective. In serious cases, there will be self-blame, self-culpability, such as feeling that they have dragged down their families, etc. The above reasons are very common.