Depression is also called the disease with 1000 faces because besides there are many forms of depression, it is manifested in different ways. Modern society, global connectivity and computerization alienated the people of one of the long, which is evident in the large increase in depressive people. Hectic and stressful life that today imposes the people is the source of many of man's emotional problems. Until a few decades ago, it was thought that depression may be the only adults, but scientific studies have disproved this fact and confirmed that a growing number of depressed children and young people. Depression is important to recognize and deal with it. Symptoms of depression are a diversity in children, adolescents and adults. The research results show that the occurrence of depression affect genetic, familial, biochemical, physical, psychological and social factors. In children, most often different symptoms are manifested at different times and in different settings. There are several forms of depression that are classified according to the causes of formation and is therefore important to recognize their causal relationship. Every individual in their own way experiencing self and the environment, and I'm creating values and priorities in life, no matter how many permits that environmental factors influence the care. Treating depression is demanding and difficult process, but greatly helps an individual suffering from depression and its surroundings. If a child who is suffering from depression does not turn into cancer treatment, depression is becoming increasingly dependent on the development of all its areas; social, emotional and cognitive development.