Unintentional Weight Loss
Free Symptom Checker
with Physician-supervised AI
Reviewed By:
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.
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.
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Content updated on Jul 9, 2023
About the symptom
Unintentional weight loss is when one loses weight without changing the diet or exercise routine.
When to see a doctor
Seek professional care if you experience any of the following symptoms
Unintentional weight loss
Possible causes
- 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.
- 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.
- Anemia
Anemia is a disorder where the body's tissues don't receive enough oxygen due to a lack of healthy red blood cells. There are several types of anemia with various causes, the most common being iron-deficiency anemia, which results from insufficient iron. Iron is needed to produce hemoglobin, a substance in red blood cells that helps carry oxygen.
- Functional dyspepsia
- Breast cancer
- Graves' disease
- Gastric cancer
- Pancreatic cancer
- Vocal cord paralysis
Related serious diseases
- Dehydration
Dehydration happens when you lose more fluid than you consume, leaving your body without enough water. Common causes include inadequate intake, diarrhea, vomiting, and fever. Dehydration can also cause serious complications like seizures, urinary and kidney problems.
Questions your doctor may ask about this symptom
Your doctor may ask these questions to check for this symptom
Have you had unintentional weight loss of more than 2 kgs in a month?
Do you have less or no appetite, therefore eat less food?
Do you have swelling on the front of your neck?
Do you have nausea or vomiting?
Do you have a fever?
Other Related Symptoms
Similar symptoms or complaints
Symptoms from the same body system / part
Reviewed By:
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.
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.
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Seiji Kanazawa, MD, PHD
Obstetrics and gynecology (OBGYN)
National Center for Child Health and Development, Japan