Loss of Appetite
Free Symptom Checker
with Physician-supervised AI
Reviewed By:
Unnati Patel, MD, MSc (Family Medicine)
Dr.Patel serves as Center Medical Director and a Primary Care Physician at Oak Street Health in Arizona. She graduated from the Zhejiang University School of Medicine prior to working in clinical research focused on preventive medicine at the University of Illinois and the University of Nevada. Dr. Patel earned her MSc in Global Health from Georgetown University, during which she worked with the WHO in Sierra Leone and Save the Children in Washington, D.C. She went on to complete her Family Medicine residency in Chicago at Norwegian American Hospital before completing a fellowship in Leadership in Value-based Care in conjunction with the Northwestern University Kellogg School of Management, where she earned her MBA. Dr. Patel’s interests include health tech and teaching medical students and she currently serves as Clinical Associate Professor at the University of Arizona School of Medicine.
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.
Content updated on Jan 4, 2023
Following the Medical Content Editorial Policy
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Try one of these related symptoms.
Loss of appetite
Decreased appetite
Don't feel like eating
Not eating as much as usual due to a lack of appetite
How Ubie Can Help You
With a free 3-min Loss of Appetite quiz, powered by Ubie's AI and doctors, find possible causes of your symptoms.
This questionnaire is customized to your situation and symptoms, including the following personal information:
Biological Sex - helps us provide relevant suggestions for male vs. female conditions.
Age - adjusts our guidance based on any age-related health factors.
History - considers past illnesses, surgeries, family history, and lifestyle choices.
Your symptoms
Our AI
Your report
Your personal report will tell you
✔ When to see a doctor
✔︎ What causes your symptoms
✔︎ Treatment information etc.
People with similar symptoms also use Ubie's symptom checker to find possible causes
- I do not want to eat
- Not hungry at all
Just 3 minutes.
Developed by doctors.
Try Free Symptom QuizAbout the Symptom
Loss of appetite occurs when the desire to eat is lost.
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
Generally, Loss of appetite can be related to:
- Acute Disseminated Encephalomyelitis
Acute disseminated encephalomyelitis involves widespread inflammation of the brain and spinal cord, resulting in damage to nerve fibers and their protective linings. It is a result of inflammation that occurs after after an infection or immunization. While it can affect anyone it is more common in children.
- Pyloric Stenosis
Abnormal narrowing of the stomach exit. It affects babies between birth and 6 months of age and causes forceful, projectile vomiting that can lead to dehydration. Risk factors include male gender, preterm birth, and smoking during pregnancy.
- Hyperemesis Gravidarum
A severe form of morning sickness, where patients have significant vomiting and are typically unable to keep much food or fluids down. They can lose weight and become very dehydrated. The exact cause is unclear, but it's thought to be related to levels of pregnancy hormones (β-hCG and estrogen). Early treatment of morning sickness can help prevent progression to this severe form. There is typically no harm to the developing baby from this condition, but it is important to maintain normal hydration and weight in the mom.
- Influenza (Flu)
Related Serious Diseases
Sometimes, Loss of appetite may be related to these serious diseases:
- Cyclic Vomiting
A condition with repeated and severe vomiting. Patients may become very unwell due to dehydration and starvation. The exact cause is unknown, but known triggers include emotional stress, anxiety, or viral illnesses.
- Encephalitis / Encephalopathy
- Pulmonary Embolism
- Acute Cholangitis
- Diabetic Ketoacidosis (DKA)
- Intestinal Perforation
Doctor's Diagnostic Questions
Your doctor may ask these questions to check for this symptom:
- Do you have a reduced appetite and eat less food?
- How long have you had loss of appetite and reduced food intake?
- How would you rate your current appetite and food intake?
- How has your loss of appetite changed since it started?
Just 3 minutes.
Developed by doctors.
Try Free Symptom QuizFind Similar Symptoms
Symptoms from similar body parts
Reviewed By:
Unnati Patel, MD, MSc (Family Medicine)
Dr.Patel serves as Center Medical Director and a Primary Care Physician at Oak Street Health in Arizona. She graduated from the Zhejiang University School of Medicine prior to working in clinical research focused on preventive medicine at the University of Illinois and the University of Nevada. Dr. Patel earned her MSc in Global Health from Georgetown University, during which she worked with the WHO in Sierra Leone and Save the Children in Washington, D.C. She went on to complete her Family Medicine residency in Chicago at Norwegian American Hospital before completing a fellowship in Leadership in Value-based Care in conjunction with the Northwestern University Kellogg School of Management, where she earned her MBA. Dr. Patel’s interests include health tech and teaching medical students and she currently serves as Clinical Associate Professor at the University of Arizona School of Medicine.
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.
What People Say about Ubie?
Male, 30s
I got more answers in one minute through your site than I did in three hours with Google.
(Sep 29, 2024)
Male, 20s
My experience was great. I was worried, but the symptom checker helped me narrow down what it might be. I feel a little relieved compared to when I first started, and it gives me a starting point for what my symptoms could mean.
(Sep 27, 2024)
Male, 50s
The questions asked and possible causes seemed spot on, putting me at ease for a next-step solution.
(Sep 26, 2024)
Female, 40s
I was actually very impressed with the results it provided because, although I didn’t mention it during the questionnaire because I thought it was unrelated, it suggested I may have something I’ve actually been diagnosed with in the past.
(Sep 25, 2024)
Just 3 minutes.
Developed by doctors.
Try Free Symptom QuizUbie is supervised by 50+ medical experts worldwide
Our symptom checker AI is continuously refined with input from experienced physicians, empowering them to make more accurate diagnoses.
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Which is the best Symptom Checker?
Ubie’s symptom checker demonstrated a Top-10 hit accuracy of 71.6%, surpassing the performance of several leading symptom checkers in the market, which averaged around 60% accuracy in similar assessments.
Link to full study:
https://www.medrxiv.org/content/10.1101/2024.08.29.24312810v1