US Medical Term · symptoms
Fatigue
Fatiga
Also: Cansancio (regional variant)
In 9 languages
| Language | Term |
|---|---|
| English | Fatigue |
| Spanish (Español) | Fatiga |
| Chinese (中文) | 疲勞 |
| Korean (한국어) | 피로 |
| Vietnamese (Tiếng Việt) | Mệt mỏi |
| Filipino (Tagalog) | Pagod |
| Portuguese (Português) | Fadiga |
| Thai (ภาษาไทย) | ความเหนื่อยล้า |
| Japanese (日本語) | 倦怠感 |
What it means
Fatigue is a persistent feeling of tiredness or lack of energy that is not relieved by rest. It differs from normal sleepiness and can interfere with daily activities. Common causes include anemia, thyroid disorders, diabetes, depression, sleep problems, chronic infections, and cancer. Certain medications can also cause fatigue. You should see a doctor if fatigue is severe, lasts more than two weeks, or is accompanied by other symptoms such as unexplained weight loss, fever, or shortness of breath, as it may signal an underlying medical condition requiring evaluation.
How to say it
Sentences a patient might use with a doctor, nurse, pharmacist, or insurer:
I feel extremely tired even after a full night of sleep.
Me siento extremadamente cansado incluso después de dormir toda la noche.
My fatigue is affecting my ability to work and do everyday tasks.
Mi fatiga está afectando mi capacidad para trabajar y hacer tareas cotidianas.
I have had no energy for the past three weeks.
He estado sin energía durante las últimas tres semanas.
Where you'll see it
Related ICD-10-CM category
R53 Malaise and fatigueRelated terms
Sources
Last reviewed: September 2026