Loss of Appetite
Free Symptom Checker
with Physician-supervised AI
Reviewed By:
Unnati Patel, MD, MSc (Primary Care Physician)
Dr Patel graduated from the Zhejiang University School of Medicine. She worked in clinical research at the University of Illinois in Chicago and University of Nevada in Las Vegas focused on culturally adapted health interventions for preventive medicine in the community setting. Received her Master's of Science in Global Health (concentration in Health Policy) from Georgetown University, during which she worked with the WHO in Sierra Leone and Save the Children in Washington, D.C. Unnati went on to complete her family medicine residency in Chicago, Illinois at Norwegian American Hospital. | | She is currently working as a primary care physician in the city of Chicago and completing her Master's of Business Administration at the Northwestern University Kellogg School of Management and Fellowship in Leadership in Value-Based Care.
Yoshinori Abe, MD (Internal medicine)
Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.
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Content updated on Jan 4, 2023
About the symptom
Loss of appetite happens when there is loss of the desire to eat
When to see a doctor
Seek professional care if you experience any of the following symptoms
Melena (black stools)
Vomiting of blood
Photophobia
Unexplained weight loss of 5% or more in 1 month
Recent weight loss
Edema
Jaundice
Fever
Gross hematuria
Possible causes
- Helicobacter pylori infection
Helicobacter pylori, or H. pylori, is a bacteria commonly found in the stomach of about half the world's population. Most people have no symptoms. However, H. pylori can cause digestive problems, including ulcers and, rarely, stomach cancer. H. pylori bacteria may spread through direct contact with saliva, vomit, feces, or contaminated food or water.
- Diabetes mellitus (DM)
A disease where blood sugar levels are abnormally high due to issues with insulin production or resistance. Often, there are no symptoms until the condition worsens, so regular screening is important.
- Migraine
A type of headache that typically presents as throbbing, pulsating pain on one side of the head, sometimes with associated nausea or sensitivity to light and sound. Sometimes, sensory disturbances, such as vision changes (seeing flashing lights or zigzag lines), can occur before the headache. The pain may worsen on exposure to bright lights or loud noise. Triggers for migraine include stress, poor sleep, caffeine, and hormonal changes in women.
- Drug-induced nausea and vomiting
- Chronic pyelonephritis
- Bacterial gastroenteritis
- Aerophagia
Related serious diseases
- Uremia / chronic renal failure
Significant decrease in kidney function. Causes include repeated damage from infections, diabetes, high blood pressure, and autoimmunity (the body's immune system attacking itself).
- Bronchial asthma
- Pneumonia (lower respiratory tract infection)
Questions your doctor may ask about this symptom
Your doctor may ask these questions to check for this symptom
Do you have less or no appetite, therefore eat less food?
Do you have a fever?
Do you have nausea or vomiting?
Do you have abdominal pain (stomach ache)?
Do you have loose stools or diarrhea?
Other Related Symptoms
Symptoms from the same body system / part
Reviewed By:
Unnati Patel, MD, MSc (Primary Care Physician)
Dr Patel graduated from the Zhejiang University School of Medicine. She worked in clinical research at the University of Illinois in Chicago and University of Nevada in Las Vegas focused on culturally adapted health interventions for preventive medicine in the community setting. Received her Master's of Science in Global Health (concentration in Health Policy) from Georgetown University, during which she worked with the WHO in Sierra Leone and Save the Children in Washington, D.C. Unnati went on to complete her family medicine residency in Chicago, Illinois at Norwegian American Hospital. | | She is currently working as a primary care physician in the city of Chicago and completing her Master's of Business Administration at the Northwestern University Kellogg School of Management and Fellowship in Leadership in Value-Based Care.
Yoshinori Abe, MD (Internal medicine)
Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.
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Seiji Kanazawa, MD, PHD
Obstetrics and gynecology (OBGYN)
National Center for Child Health and Development, Japan