Malignant fever or malignant hyperthermia is a disease that leads to a fast rise in body temperature and extreme muscle contractions when anyone with the condition gets common anesthesia. Malignant hyperthermia is handed down by generations through genes.
Hyperthermia means an elevated body temperature. This condition is not like the hyperthermia from medical emergencies such as heat stroke or infections.
Malignant hyperthermia is inherited. A single parent must have the genes for an offspring to inherit this condition.
This condition will arise with other inherited muscle diseases like multi-minicore myopathy and central core disease.