Teens can be moody. They’re navigating identity, friendships, school pressure, and big changes in their brains and bodies. So how can a parent tell the difference between typical ups and downs and something that needs attention?

Start with duration and intensity. A rough day or a short stretch of irritability is common. But when sadness, numbness, or anger lasts for weeks and begins to affect daily functioning—school, relationships, sleep, appetite—that’s a signal to look closer.

Watch for withdrawal. If your teen stops enjoying activities they used to like, pulls away from friends, or spends most of their time isolated, that’s worth noticing. Pay attention to changes in sleep (sleeping far more or far less), appetite shifts, frequent headaches/stomachaches, or a sudden drop in grades.

Irritability can be a major depression sign in teens. Some parents expect depression to look like tears, but teens often show it as frustration, agitation, or “I don’t care” behavior.

The best approach is calm curiosity. Choose a low-stress moment and start with observations: “I’ve noticed you’ve been sleeping a lot and you seem less interested in things. I’m not mad—I’m concerned.” Then ask a gentle question: “How have you been feeling lately?”

If your teen isn’t ready to talk, keep the door open and offer options: talking to another trusted adult, meeting with a counselor, or even starting therapy as a “support and skills” resource rather than a crisis response.

If you ever hear talk of hopelessness, self-harm, or “not wanting to be here,” treat that as urgent and seek immediate professional help.