Why a Checklist for Depression?

Depression is one of the most common mental health conditions in the United States, yet it is frequently missed — both by the people experiencing it and by those around them. One reason is that depression rarely looks the way popular culture suggests. It is not always visible sadness or tearfulness. It can show up as irritability, exhaustion, disconnection, or a quiet sense that nothing matters anymore.

This checklist draws on symptom frameworks used by mental health clinicians — including criteria outlined in the DSM — and translates them into everyday, recognisable language. It is designed for two purposes: to help you reflect on your own experience, and to help you notice patterns in someone you care about.

Before you begin, a gentle reminder: this tool is for awareness and reflection only. It is not a diagnostic test. Only a qualified healthcare professional can determine whether depression is present. If you are concerned, please reach out to a doctor, therapist, or counsellor. For a broader understanding of how depression develops, see our introduction to depression.

Emotional and Mood Signs

Notice a persistent low or empty mood that does not lift even when circumstances improve. Must
Check whether feelings of hopelessness or helplessness are present — a sense that things will not get better. Must
Look for unexplained irritability, frustration, or a short temper that is out of character. Should
Note a loss of pleasure or interest in activities that previously brought enjoyment (sometimes called anhedonia). Must
Observe persistent feelings of worthlessness, excessive guilt, or harsh self-criticism. Should

Physical and Somatic Signs

Track significant changes in sleep — either sleeping much more than usual or struggling to sleep most nights. Must
Notice changes in appetite or weight that are not intentional — eating considerably more or less than usual. Should
Check for persistent fatigue or low energy that does not improve with rest. Must
Look for unexplained physical symptoms such as headaches, digestive issues, or body aches with no clear medical cause. Nice to have
Notice psychomotor changes — moving or speaking more slowly than usual, or feeling visibly restless and agitated. Should

Cognitive and Thinking Signs

Observe difficulty concentrating, remembering details, or making even simple decisions. Should
Notice a pattern of negative or distorted thinking — consistently expecting the worst or interpreting neutral events negatively. Should
Check for recurring thoughts about death, dying, or — most urgently — any thoughts of self-harm or suicide. If present, seek professional support immediately. Must

Behavioural and Social Signs

Notice withdrawal from friends, family, or social activities that were once part of regular life. Must
Check for neglect of responsibilities at work, school, or home that is out of character. Should
Observe reduced self-care — skipping hygiene routines, not eating regularly, or letting basic needs slide. Should
Look for increased use of alcohol or substances as a way of coping with difficult feelings. Should
Notice loss of motivation to pursue goals, hobbies, or future plans. Nice to have

How to Use This Checklist

Work through each group and note any items that feel consistently present — not just on one difficult day, but across most days for two weeks or longer. That timeframe matters. It reflects the clinical threshold used by professionals to distinguish depression from ordinary fluctuations in mood.

If you are checking for someone else, focus on changes from their usual baseline. A person who has always been quiet is different from a person who has recently become withdrawn. Context is everything.

Thoughts of Self-Harm Require Immediate Action

If you or someone you know is experiencing thoughts of suicide or self-harm, do not wait. Contact a healthcare provider, go to the nearest emergency room, or call or text 988 (the Suicide and Crisis Lifeline in the US) to reach a trained counsellor immediately. This checklist is not a substitute for urgent professional support.

Once you have worked through the checklist, count the items you identified. A cluster of signs — particularly from multiple groups — is worth taking seriously. Our plain-language symptom reference can help you understand what each sign typically looks like day to day. You may also find it useful to compare these patterns with those of anxiety by exploring recognising anxiety in yourself, as the two conditions sometimes overlap.

If you are supporting a friend or family member and want more specific guidance, our article on recognising depression in someone you care about covers how to respond thoughtfully once you have noticed the signs.

This article is for general informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. If you or someone you know is in crisis, please contact a qualified healthcare provider or a crisis line immediately.