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Heat intolerance

Sensitivity to heat; Intolerance to heat

Heat intolerance is a feeling of being overheated when the temperature around you rises. It can often cause heavy sweating.

Heat intolerance usually comes on slowly and lasts for a long time, but it may also occur quickly and be a serious illness.

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Causes

Heat intolerance may be caused by:

Home Care

Exposure to extreme heat and sun can cause heat emergencies or illnesses. You can prevent heat illnesses by:

When to Contact a Medical Professional

Call your health care provider if you have unexplained heat intolerance.

What to Expect at Your Office Visit

Your provider will take a medical history and perform a physical examination.

Your provider may ask you questions like these:

Tests that may be performed include:

References

Davies TF, Laurberg P, Bahn RS. Hyperthyroid disorders. In: Melmed S, Polonsky KS, Larsen PR, Kronenberg HM, eds. Williams Textbook of Endocrinology. 13th ed. Philadelphia, PA: Elsevier; 2016:chap 12.

Kim M, Ladenson PW. Thyroid. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 226.

Sawka MN, O'Connor FG. Disorders due to heat and cold. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 109.

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Review Date: 2/18/2018  

Reviewed By: Laura J. Martin, MD, MPH, ABIM Board Certified in Internal Medicine and Hospice and Palliative Medicine, Atlanta, GA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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