Consult with your healthcare provider if you’re concerned about weight gain.
This article discusses the symptoms, causes, and treatment for weight gain.
Life Cycle
Our bodies change throughout our lives.

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Here are some examples:
Lifestyle Factors
Certain habits and lifestyle choices can impact weight.
Medical Conditions
Certain medical conditions are linked to weight gain.
What Medication Can Cause Weight Gain?
Working with a healthcare provider will help rule out any severe conditions.
Lifestyle factors related to sleep, diet, and physical activity contribute to weight gain.
Changing these habits may help treat weight gain.
Are There Tests to Diagnose the Cause of Weight Gain?
As we grow, such as in puberty and pregnancy, we will gain weight.
Aging, lifestyle, environment, and medical conditions can contribute to weight gain.
Some medical conditions and medications can cause weight gain as well.
A Word From Verywell
Weight gain can be a frustrating symptom, especially when unexplained.
Its important to remember that factors that may be out of your control can contribute to weight gain.
Work with your healthcare provider to determine the underlying cause of weight gain.
Weight gain is not a reported symptom of COVID-19 infection.
Centers for Disease Control and Prevention.Assessing your weight.
National Library of Medicine.Aging changes in body shape.
Centers for Disease Control and Prevention.Weight gain during pregnancy.
American Academy of Pediatrics.Physical changes during puberty.
12(9):e10275.
2009;2(3):191-201.
National Institutes of Health.Molecular ties between lack of sleep and weight gain.
National Library of Medicine.Weight gain after quitting smoking: what to do.
Wolters Kluwer Health/Lippincott Williams & Wilkins; 2014.
Centers for Disease Control and Prevention.Factors in weight gain.
Kladnicka I, Bludovska M, Plavinova I, et al.Obesogens in foods.Biomolecules.
2022;12(5):680. doi:10.3390/biom12050680
National Library of Medicine.Weight gain unintentional.
National Library of Medicine.Swelling.
2018;11:427-438. doi:10.2147/DMSO.S171365
Mount Sinai.Weight gain - unintentional.
2021;15(5):102252. doi:10.1016/j.dsx.2021.102252