Nine signs of depression and when to seek help

CareOps editorial team · October 9, 2026 · Updated October 15, 2026 · 7 min read

Mental wellness information and service guidance published by CareOps.

Everyone has low days. But when feeling down or losing interest in things you usually enjoy persists and affects daily life, it deserves attention. You do not have to dismiss it as a bad week or wait until it becomes unbearable.

Nine symptoms to pay attention to #

Clinicians assess the pattern, duration, and impact of symptoms—not just a checklist score. A major depressive episode generally involves at least five symptoms over two weeks, including low mood or loss of interest. You can still need support with fewer symptoms.

1. Low, empty, or hopeless mood — This may last through much of the day. Irritability can also be prominent, especially in young people.
2. Less interest or pleasure — Activities you usually enjoy may feel flat or difficult to begin.
3. Appetite or weight changes — Eating noticeably less or more than usual.
4. Sleep changes — Trouble sleeping, waking early, or sleeping much more than usual.
5. Slowed movement or marked restlessness — A change that other people may notice.
6. Fatigue or low energy — Everyday tasks can feel unusually demanding.
7. Worthlessness or excessive guilt — Harsh self-judgments that feel difficult to question.
8. Difficulty concentrating or deciding — Reading, work, or small choices may take more effort.
9. Repeated thoughts about death or suicide — These deserve prompt support; immediate danger requires urgent help.

Use this list to describe what has changed and prepare for an appointment. A clinician can also consider physical conditions, medication effects, and other possible explanations.

How does depression differ from a passing low mood? #

Signs that are easy to miss in the beginning #

Some people first notice changes in their routines or energy. The examples below are not specific to depression, but they can be useful to mention when asking for help.

• Getting started feels harder. Showering, preparing food, or leaving home takes more effort.
• You feel more irritable. Small frustrations feel unusually difficult to handle.
• Physical discomfort persists. Headaches or digestive symptoms need medical attention too, rather than being assumed to be psychological.
• You withdraw from people. Replying to messages or keeping plans feels exhausting.
• You rely more on alcohol. You may be drinking to sleep or avoid difficult feelings.
• Rest does not feel restorative. Low energy continues beyond an occasional tiring day.

If exhaustion and cynicism center on work, burnout may be relevant. Depression and burnout can overlap, and enjoying an occasional activity does not rule depression out. If low periods alternate with times you felt elevated despite barely sleeping, also read bipolar disorder symptoms. If these changes start every fall or winter and lift in spring, see seasonal depression. If they began within a few months of a big change such as a new job, a breakup or a school transfer, read about adjustment disorder. If you notice more irritability and falling grades in a teenager, see teen depression signs.

How common is depression? #

The World Health Organization estimates that depression affects 5.2% of adults worldwide. This is a population estimate, not a way to judge how serious one person’s experience is.

Estimates also vary by country, survey method, and whether a study asks about the past year or a person’s lifetime. The Korean national survey linked below provides local context; its figures should not be treated as directly interchangeable with WHO’s global estimate.

When to seek professional support #

• Low mood, loss of interest, or other changes persist for two weeks or more—or concern you sooner.
• Work, study, relationships, eating, or basic self-care are becoming difficult.
• Sleep or appetite changes are substantial or persistent.
• You feel persistently low or overwhelmed during pregnancy or after giving birth; seek help promptly for severe symptoms.
• You have thoughts about death, suicide, or harming yourself.

Costs, coverage, and confidentiality rules depend on where you live. Our guides to psychiatric records and counseling costs discuss the Korean context; ask a local provider about arrangements in your country.

For next steps, read the depression treatment and appointment guide. It covers therapy, medication and questions to ask. You can also write a free appointment preparation note without an account.

Small ways to support yourself #

Choose one manageable step, rather than treating this as another list you must complete. Everyday routines can support recovery. Add professional assessment and treatment when symptoms persist or disrupt daily life.

• Choose a small action. A short, achievable task can be a starting point when motivation is low. See our guide to low energy and getting started.
• Keep a workable sleep routine. Aim for a reasonably consistent waking time. Our sleep guide offers practical ideas.
• Try gentle movement. A short walk or another activity within your abilities may be a manageable first step.
• Tell one person. You could start with, “I’ve been having a hard time and would like some support.”
• Notice alcohol’s effects. Alcohol can worsen mood and sleep. If cutting down is difficult or you may be dependent, ask a health professional for support.

To put the last two weeks into words, you can start with the PHQ-9 depression check (9 questions). After having a baby, read postpartum depression signs; if feeling alone is the biggest part, see coping with loneliness. If emptiness is stronger than sadness, read when you feel empty inside. If you seem fine on the outside but feel worn down inside, see smiling depression.

This guide shares mental wellness information. If you are in immediate danger, contact emergency services where you are. Support and contact information.