Until the late 20th century, depression was considered an adult mental health issue, explains the National Institute of Mental Health. Now, however, mental health professionals understand that depression may also impact children and adolescents. According to Healthy Place: America's Mental Health Channel, 1 in 10 children may be affected by depression with a lower rate of 1 percent for children ages 1 to 6, and a rate of 12 percent for children ages 9 to 12.
Behavior Issues
Because young children do not have the communication skills and vocabulary to discuss their emotions fully, depression often is confused for behavioral issues. This might include irritability, phobias, sleep disturbances, lack of concentration, separation anxiety and acting out.
Physical Symptoms
A 6-year-old suffering from depression may exhibit signs of physical distress. She might complain of constant headaches or stomachaches, and experience loss of energy, weight loss or weight gain.
Emotional Issues
When a child as young as 6 experiences depression, it may manifest through a change in emotions. These changes include irritability, anger, hostility, lack of interest, feelings of guilt or worthlessness, or excessive tears. Healthy Place notes that a child might also say negative things about himself or exhibit self-destructive behaviors.
Social Issues
A 6-year-old with depression might demonstrate a change her social habits. She might refuse to play with friends, withdraw from social interactions, appear disinterested in her usual activities or communicate less than usual.


