 [ Symptoms ] my son was bitten by a spider and now it is red and swollen but does not hurt him what should i do  the swolleness is the size of an orange but does not hurt him he does not have hives or fever should i take him to see his pediatrician [ Disease ] it is estimated that 2 5 of children in the u s suffer from depression depression is significantly more common in boys under the age of 10 but by age 16 girls have a greater incidence of depression bipolar disorder is more common in adolescents than in younger children bipolar disorder in children can however be more severe than in adolescents it may also co occur with or be hidden by attention deficit hyperactivity disorder adhd obsessive compulsive disorder ocd or conduct disorder cd