3-Symptom Combination

Fatigue, Loss Of Appetite and Weight Gain: Causes, Conditions & When to See a Doctor

Early recognition of Depression is critical — treatment initiated at the earliest stage is significantly more effective and prevents long-term complications. Understanding the subtle initial presentations allows patients and clinicians to act before the condition progresses.

→ Fatigue Overview → Loss Of Appetite Overview → Weight Gain Overview

Possible Causes of Fatigue, Loss Of Appetite and Weight Gain

Conditions that commonly produce all three symptoms together

1Early Depression often produces non-specific symptoms: fatigue, malaise, or mild discomfort
2Early warning signs may include: depressed mood, fatigue, insomnia, loss of appetite
3Subclinical changes in blood tests, blood pressure, or weight often precede overt symptoms
4Family history and risk factors increase the probability that vague symptoms represent early Depression
5Screening programmes are designed specifically to detect Depression before symptoms appear
6Core management targets: reducing depressed mood, fatigue, insomnia and preventing disease progression

Emergency Red Flags

Seek immediate medical attention if you experience any of these

Any of the characteristic symptoms of Depression — even mild — in a high-risk individual

Progressive worsening of early warning signs over weeks

Laboratory abnormalities (e.g., blood sugar, inflammatory markers) without full symptoms

Unexplained weight loss, night sweats, or fatigue persisting >2 weeks

Strong family history of Depression combined with new relevant symptoms

When to See a Doctor

Schedule a consultation if you notice these signs

You have risk factors for Depression and develop any of the characteristic early symptoms

Screening tests return borderline or abnormal results

You have a strong family history and have not yet been screened for Depression

Scheduled monitoring appointments — do not skip even when feeling well

Conditions That Cause Fatigue, Loss Of Appetite and Weight Gain

2 conditions are associated with this three-symptom pattern

Depression is a common and serious mood disorder causing persistent feelings of sadness, hopelessness, and loss of interest in activities. It affects how a person thinks, feels, and handles daily activities. Effective treatments include therapy and medication.

Nephrotic Syndrome

Nephrotic syndrome is characterized by massive proteinuria (>3.5g/day), hypoalbuminemia, edema, and hyperlipidemia. Causes include minimal change disease (children), membranous nephropathy, and diabetic nephropathy; steroids and immunosuppressants are used.

Explore Each Symptom

In-depth pages for each symptom in this combination

Fatigue — Overview Causes Treatment When to See a Doctor Related Questions

Loss Of Appetite — Overview Causes Treatment When to See a Doctor Related Questions

Weight Gain — Overview Causes Treatment When to See a Doctor Related Questions

Related 2-Symptom Combinations

Paired symptom pages for each pair within this triple

Fatigue and Loss Of Appetite Fatigue and Weight Gain Loss Of Appetite and Weight Gain

Medical Questions About This Combination

Evidence-based answers from medical experts

Early Signs of Depression How to Manage Depression Early Signs of Nephrotic Syndrome How to Manage Nephrotic Syndrome Why Does Loss of appetite Happen?When Is Loss of appetite Dangerous?How to Relieve Loss of appetite What Causes Loss of appetite?

Experiencing Fatigue, Loss Of Appetite and Weight Gain?

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