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man applying deodorant

Body Odor

By

Healthgrades Editorial Staff

What is body odor?

Body odor is any strong or unusual odor related to the body. The medical term is bromhidrosis. Occasional abnormal body odor may be a temporary effect of a metabolic change, such as fruity breath in diabetic ketoacidosis, but by far the most common cause of abnormal body odor is excessive perspiration or hyperhidrosis (overactive sweat glands).

Sweating, or perspiring, is necessary to cool the body and is triggered by warm temperatures, exercise or physical exertion, or as a stress response to nervousness, fear, embarrassment or anger. Fluid from sweating in combination with skin bacteria produce the familiar odor recognized as body odor.

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The two types of hyperhidrosis include primary or focal hyperhidrosis, in which your hands, feet and armpits sweat excessively; and secondary hyperhidrosis, in which you may sweat all over your body or in one area besides your feet, hands or armpits. Secondary hyperhidrosis is caused by other conditions, such as anxiety disorders, cancers, diabetes, hyperthyroidism (overactive thyroid), lung disease, pheochromocytoma (tumor associated with hypertension), tuberculosis (serious infection affecting the lungs and other organs), or other infections.

Hyperhidrosis and body odor are rarely emergency conditions.

If your body odor is persistent or causes you concern, seek prompt medical care.


Medical Reviewers: William C. Lloyd III, MD, FACS Last Review Date: Oct 18, 2016

© 2016 Healthgrades Operating Company, Inc. All rights reserved. May not be reproduced or reprinted without permission from Healthgrades Operating Company, Inc. Use of this information is governed by the Healthgrades User Agreement.

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Medical References

  1. Hyperhidrosis. MedlinePlus, a service of the National Library of Medicine National Institutes of Health. http://www.nlm.nih.gov/medlineplus/ency/article/007259.htm.
  2. Sweating. MedlinePlus, a service of the National Library of Medicine National Institutes of Health. http://www.nlm.nih.gov/medlineplus/ency/article/003218.htm.
  3. Hornberger J, Grimes K, Naumann M, et al. Recognition, diagnosis, and treatment of primary focal hyperhidrosis. J Am Acad Dermatol 2004; 51:274.

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