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Educational use only: Symptom.Today is an educational tool and does not provide medical advice, diagnosis, or treatment. Results are not a substitute for professional medical care. If symptoms are severe, worsening, or concerning, seek medical attention immediately. In an emergency, call your local emergency number.
Mental HealthSerious

Depression

Depression is a serious condition affecting general. It can present with a range of symptoms and may vary in intensity from person to person.

Severity
Serious
System
Whole body
Progression
Slow / Silent
Treatable
Yes — with early detection
Common age
All ages
Duration
Acute → may persist
Contagious
No
Emergency risk
High
Whole body
Affected: Depressed mood
Affected area: Whole body

Overview

Depression is a serious condition affecting general. It can present with a range of symptoms and may vary in intensity from person to person.

Possible causes include factors such as underlying biological, lifestyle, or environmental triggers. Most people may benefit from early recognition and appropriate care.

Outlook depends on individual factors and how soon care is sought. Because it can become serious, early medical evaluation is important.

Symptoms

Click any symptom to analyze
Primary symptoms
Depressed moodOpen analyzer pre-filled with “Depressed mood”FatigueOpen analyzer pre-filled with “Fatigue”InsomniaOpen analyzer pre-filled with “Insomnia”Loss of appetiteOpen analyzer pre-filled with “Loss of appetite”Suicidal thoughtsOpen analyzer pre-filled with “Suicidal thoughts”

Causes

  • •Underlying biological factors
  • •Environmental or lifestyle triggers
  • •Genetic predisposition in some cases

Risk factors

  • •Age (more common in certain age groups)
  • •Family history or genetic predisposition
  • •Lifestyle factors such as diet, activity, or smoking
  • •Environmental exposures

How it progresses

3 stages
  1. Stage 1 — Early
    Mild or intermittent symptoms; easily mistaken for something minor.
    Often missed
  2. Stage 2 — Progressive
    Symptoms become more frequent or severe.
  3. Stage 3 — Established
    Daily life affected; medical care strongly recommended.

How it's diagnosed

  • •Clinical history
  • •Physical exam

Treatment options

General educational information only — no dosage advice. Always follow guidance from a qualified clinician.

Medical
  • •See a clinician for tailored care
Home care
  • •Rest
  • •Hydration

Complications

  • •Long-term damage if untreated
  • •Reduced quality of life
  • •Worsening symptoms over time
  • •Recurrence of depression

Prevention

  • •Maintain a healthy lifestyle
  • •See a clinician for routine check-ups

When to seek help

Urgent — same-day care
  • •Symptoms persist beyond a few days
  • •Symptoms interfere with daily activities
  • •New or worsening symptoms appear
  • •Concerning changes related to depression
🚨 Emergency — call now
  • Suicidal thoughts — call a crisis line or 988 (US)

In any emergency, call your local emergency number or go to the nearest emergency department.

Real-world questions

  • ›Can Depression cause headaches?
  • ›Is Depression reversible?
  • ›How quickly does Depression progress?
  • ›Is Depression hereditary?
  • ›Can Depression be prevented?

Compare conditions

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Frequently asked questions

What causes Depression?

Depression can result from a combination of biological, lifestyle, and environmental factors.

Is Depression dangerous?

Depression can be serious and may require prompt medical attention, especially if symptoms are severe or worsening.

How long does Depression last?

Duration varies between individuals. Many cases improve with appropriate care, while others may persist longer and require ongoing management.

Can Depression go away on its own?

Depression typically benefits from medical evaluation and should not be ignored.

When should I see a doctor about Depression?

Consider seeing a clinician if symptoms are severe, persistent, worsening, or if you have any concerns related to general.

Sources

Information based on general medical references such as:

CDCNHSWHOMedlinePlus

Last reviewed: May 2026

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Educational use only: Symptom.Today is an educational tool and does not provide medical advice, diagnosis, or treatment. Results are not a substitute for professional medical care. If symptoms are severe, worsening, or concerning, seek medical attention immediately. In an emergency, call your local emergency number.