Loss of appetite, medically referred to as anorexia, can be caused by a variety of conditions and diseases. Some of the conditions can be temporary and reversible, such as loss of appetite from the effects of medications. Some of the conditions can be more serious, such as from the effects of underlying cancer. Any persisting lack of appetite should be evaluated by a health care professional.
Causes of loss of appetite include pregnancy, metabolic problems, chronic liver disease, COPD, dementia, HIV, hepatitis, hypothyroidism, chronic kidney failure, heart failure, cocaine, heroin, speed, chemotherapy, morphine, codeine, and antibiotics.
Other causes of loss of appetite
- Bowel Disease or Disease of the Gastrointestinal Tract (Such As Gallbladder Disease)
- Brain Damage (Such As Trauma)
- Hormone (Endocrine Disorder)
- Inflammation (Such As From Chronic Infectious or Chronic Inflammatory Diseases)
- Loss of Sense of Taste
- Medications (Both Prescription and Nonprescription)
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Causes of Loss of Appetite
Addison disease is a hormonal (endocrine) disorder involving destruction of the adrenal glands (small glands adjacent to the kidneys). Diseased glands can no longer produce sufficient adrenal hormones (specifically cortisol) necessary for normal daily body functions. Symptoms include weight loss, muscle weakness, fatigue, low blood pressure, and sometimes darkening of the skin. Treatment of Addison disease involves replacing, or substituting, the hormones that the adrenal glands are not making.
Amebiasis (Entamoeba Histolytica Infection)
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Amyloidosis is a group of diseases resulting from abnormal deposition of certain proteins (amyloids) in various bodily areas. The amyloid proteins may either be deposited in one particular area of the body (localized amyloidosis) or they may be deposited throughout the body (systemic amyloidosis). There are three types of systemic amyloidosis: primary (AL), secondary (AA), and familial (ATTR). Primary amyloidosis is not associated with any other diseases and is considered a disease entity of its own. Secondary amyloidosis occurs as a result of another illness. Familial Mediterranean Fever is a form of familial (inherited) amyloidosis. Amyloidosis treatment involves treating the underlying illness and correcting organ failure.
Anthrax is a deadly infectious disease that may be transmitted to humans by infected animals or by biological warfare. There are three types of anthrax: cutaneous, inhalation, and gastrointestinal. Symptoms of cutaneous anthrax include a swollen glands, muscle ache, headache, fever, nausea, vomiting, and a red-brown raised spot that enlarges, blisters, and hardens, forming an ulcer crater with black crust. Symptoms of inhalation anthrax are flu-like and may progress to respiratory distress, shock, coma, and death. Symptoms of gastrointestinal anthrax include loss of appetite, bloody diarrhea, and abdominal pain. Treatment for cutaneous anthrax involves penicillin, tetracycline, erythromycin, and ciprofloxin. Inhalation anthrax necessitates treatment with IV therapy with antibiotics.
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Rocky Mountain Spotted Fever (RMSF)
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Still's disease (systemic-onset juvenile rheumatoid arthritis) is a disorder characterized by inflammation with high fever spikes, fatigue, salmon-colored rash, and/or arthritis. Though there have been several theories regarding the cause(s) of Still's disease, the cause is not yet known. Many symptoms of Still's disease are often treatable with anti-inflammatory drugs.
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Depression in teenagers may be caused by many factors. Symptoms of teen depression include apathy, irresponsible behavior, sadness, sudden drop in grades, withdrawal from friends, and alcohol and drug use. Treatment of depression in adolescents may involve psychotherapy and medications.
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