Hyperthermia

Symptom Checker: Symptoms & Signs Index

Medical Author:

Symptoms of hyperthermia, or heat-related illness, vary according to the specific type of illness. The most severe form of hyperthermia is heat stroke. This happens when the body is no longer able to regulate its internal temperature; this is a medical emergency. The body temperature may be over 105 F, a level that damages the brain and other organs. Other symptoms include muscle cramps, fatigue, dizziness, headache, nausea, vomiting, and weakness. The heart rate may be elevated, and the skin is reddened. The skin may be moist if sweating is still occurring, or it may be dry if sweating has stopped. Confusion and mental changes may develop, and seizures can occur with brain damage. Ultimately, coma and death may ensue.

Heat exhaustion is a less severe form of hyperthermia. People with heat exhaustion typically experience weakness, nausea, vomiting, headache, muscle cramps, and profuse sweating. Other forms of heat illness include heat cramps, which are involuntary spasms of large muscle groups, and heat syncope, which is fainting or lightheadedness. Heat rash is characterized by a prickly or itchy feeling of the skin coupled with red bumps on the skin.

Patients may experience the related symptoms of Fever and/or Headache.

Medically Reviewed by a Doctor on 10/16/2013

Health concern on your mind? Visit the Symptom Checker.

REFERENCE:

United States. National Institutes of Health. "Hyperthermia: Too Hot for Your Health." June 27, 2012. <http://www.nih.gov/news/health/jun2012/nia-27.htm>.

Main Article on Hyperthermia Symptoms and Signs
  • Hyperthermia Hyperthermia is the overheating of the body. Heat-related illnesses like heat stroke, heat exhaustion, heat cramps, heat rash,...learn more »
Hyperthermia Symptoms and Signs



STAY INFORMED

Get the Latest health and medical information delivered direct to your inbox!