Can they diagnose teenagers with bipolar disorder?

Yes: Teenagers with bipolar disorder have an ongoing combination of extremely high (manic) and low (depressed) moods. Highs may alternate with lows, or the person may feel both extremes at close to the same time. Bipolar disorder usually starts in adult life, before the age of 35. Although rare in young children, it does occur in teenagers. This illness can affect anyone. However, if one or both parent.

Yes, it happens: If a teen/child is having major rages, aggression and rapid mood changed multiple times per day, then have the pediatrician rule out medical causes. If so they then refer you to a child psychiatrist to consider. Find out if the child psychiatrist has experience with pediatric bipolar/ has actually had many such case under treatment. If less aggressive, referral to therapist with expertise in area.