Unintentional Weight Gain
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Reviewed By:
Hidetaka Hamasaki, MD (Endocrinology)
Dr. Hamasaki graduated from the Hiroshima University School of Medicine and the Graduate School of Medicine, Jichi Medical University. He completed his residency at the Department of Diabetes, Endocrinology and Metabolism, National Center for Global Health and Medicine Hospital and the Department of Internal Medicine, Kohnodai Hospital, National Center for Global Health and Medicine. He has served in the National Center for Global Health and Medicine Hospital and Kohnodai Hospital and joined Hamasaki Clinic in April 2017. Dr. Hamasaki specializes in diabetes and treats a wide range of internal medicine and endocrine disorders.
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Content updated on Jan 4, 2023
About the symptom
Weight gain of 5% or more in 1 month ith no obvious intentional cause such as eating more or exercising. It is important to see a physician to check the underlying cause for this symptom.
When to see a doctor
Seek professional care if you experience any of the following symptoms
Unintentional weight gain
Possible causes
- Dyslipidemia
Dyslipidemia is a condition where there are abnormally high levels of lipids (fats) in the blood, including cholesterol and triglycerides. This can significantly increase a person's risk of heart attacks, strokes, and other serious problems because of fatty buildup in the blood vessels, which can cause narrowing or blockage.
- Hypothyroidism
A disorder where thyroid hormone levels in the body are abnormally low. These hormones are necessary for growth, development, and metabolism.
- Anorexia nervosa / bulimia nervosa
A condition with an abnormal fear of gaining weight. Patients try to lose weight excessively through fasting, inducing vomiting, or excessive exercise.
- Adjustment disorder
- Chronic hepatitis
- Cushing syndrome
- Portal hypertension
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).
- Chronic heart failure
- Congestive heart failure
Questions your doctor may ask about this symptom
Your doctor may ask these questions to check for this symptom
Do you have unintentional weight gain of more than 2 kgs in one month?
Do you exercise daily?
Have you ever been told that you snore while sleeping?
Do you have nausea or vomiting?
Do you have abnormal menstrual cycles e.g. too early or too late
Other Related Symptoms
Similar symptoms or complaints
Symptoms from the same body system / part
Symptoms treated by the same specialty
Reviewed By:
Hidetaka Hamasaki, MD (Endocrinology)
Dr. Hamasaki graduated from the Hiroshima University School of Medicine and the Graduate School of Medicine, Jichi Medical University. He completed his residency at the Department of Diabetes, Endocrinology and Metabolism, National Center for Global Health and Medicine Hospital and the Department of Internal Medicine, Kohnodai Hospital, National Center for Global Health and Medicine. He has served in the National Center for Global Health and Medicine Hospital and Kohnodai Hospital and joined Hamasaki Clinic in April 2017. Dr. Hamasaki specializes in diabetes and treats a wide range of internal medicine and endocrine disorders.
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Seiji Kanazawa, MD, PHD
Obstetrics and gynecology (OBGYN)
National Center for Child Health and Development, Japan