Fatigue - Causes, Conditions & When to See a Doctor
Fatigue is a feeling of persistent tiredness or exhaustion that does not improve with rest. It can be physical, mental, or both, and may indicate an underlying health condition.
Overview
Fatigue is more than just feeling tired. It is a persistent state of weariness that affects your ability to function normally. While occasional tiredness is normal, persistent fatigue lasting more than two weeks may indicate an underlying medical condition.
Conditions That Cause Fatigue
Fatigue can be associated with several medical conditions. Understanding the underlying cause is important for proper treatment.
Fatty Liver Disease
Common causeFatty liver disease (hepatic steatosis) is a condition where excess fat builds up in the liver. It can be alcohol-related or non-alcoholic (NAFLD/NASH).
Anemia
Common causeAnemia is a condition where the blood lacks enough healthy red blood cells or hemoglobin to carry adequate oxygen to the body's tissues, causing fatigue, weakness, and other symptoms.
Depression
Common causeDepression (major depressive disorder) is a common and serious mood disorder that causes persistent feelings of sadness, hopelessness, and loss of interest in activities, affecting how you feel, think, and handle daily activities.
Vitamin D Deficiency
Common causeVitamin D deficiency occurs when the body does not get enough vitamin D, leading to weakened bones, muscle weakness, and increased risk of various health conditions.
Obesity
Common causeObesity is a complex chronic disease characterized by excessive body fat accumulation that impairs health and increases the risk of numerous medical conditions.
Hypothyroidism
Common causeHypothyroidism is a condition where the thyroid gland does not produce enough thyroid hormones, leading to a slowdown of the body's metabolic processes.
Chronic Kidney Disease
Common causeChronic kidney disease (CKD) is a gradual loss of kidney function over months or years, eventually requiring dialysis or transplant if it progresses to end-stage.
Diabetes
Common causeDiabetes is a chronic metabolic disease characterized by elevated blood sugar levels, which over time can lead to serious damage to the heart, blood vessels, eyes, kidneys, and nerves.
Sleep Apnea
Common causeSleep apnea is a serious sleep disorder where breathing repeatedly stops and starts during sleep, leading to poor sleep quality and oxygen deprivation.
Arthritis
Arthritis is a group of conditions involving inflammation of one or more joints, causing pain, stiffness, and swelling that can worsen with age.
Coronary Artery Disease
Coronary artery disease (CAD) is the most common type of heart disease, caused by plaque buildup in the walls of arteries that supply blood to the heart.
Hyperthyroidism
Hyperthyroidism is a condition where the thyroid gland produces too much thyroid hormone, causing the body's metabolism to speed up significantly.
PCOS
Polycystic Ovary Syndrome (PCOS) is a hormonal disorder common among women of reproductive age, characterized by irregular periods, excess androgen levels, and polycystic ovaries.
Tuberculosis
Tuberculosis (TB) is a potentially serious bacterial infection caused by Mycobacterium tuberculosis that mainly affects the lungs but can affect other parts of the body.
Pneumonia
Pneumonia is an infection that inflames the air sacs in one or both lungs, which may fill with fluid or pus, causing cough with phlegm, fever, chills, and difficulty breathing.
Malaria
Malaria is a life-threatening mosquito-borne disease caused by Plasmodium parasites, transmitted through the bite of infected Anopheles mosquitoes.
Allergic Rhinitis
Allergic rhinitis (hay fever) is an allergic response causing sneezing, congestion, itchy nose, and runny nose when you breathe in allergens like pollen, dust, or pet dander.
Irritable Bowel Syndrome
Irritable Bowel Syndrome (IBS) is a common functional gastrointestinal disorder characterized by abdominal pain, bloating, and changes in bowel habits (diarrhea, constipation, or both).
Dengue
Dengue is a mosquito-borne viral infection causing high fever, severe headache, body aches, and in severe cases, potentially life-threatening bleeding and shock.
Typhoid
Typhoid fever is a bacterial infection caused by Salmonella typhi, spread through contaminated food and water, causing prolonged fever, weakness, and digestive problems.
When to See a Doctor for Fatigue
Consult a doctor if fatigue persists for more than two weeks despite adequate rest, is accompanied by unexplained weight loss, fever, or pain, or significantly impacts your daily activities and quality of life.
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Related Symptoms
People experiencing fatigue may also notice these symptoms:
Medical Disclaimer
The content provided on Zospital is for general informational and educational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website. If you think you may have a medical emergency, call your doctor or emergency services immediately.