Common Causes Of Nausea

Fever

A fever can sometimes cause nausea, or at least present alongside nausea. Fevers occur when the immune system raises the body's overall temperature in response to an infection or illness. Some researchers believe this is an attempt to kill off pathogens that can't survive at high temperatures. Many infections and illnesses can cause a fever. One of the most common that also causes nausea is the stomach flu, and it is among the most common causes of food-transmitted illnesses found in the United States. Usually, the underlying condition that causes a fever is also what causes nausea. If an individual's body temperature rises high enough that they feel sick because of it alone, they should see a doctor. Fevers are considered high when an individual's temperature rises to levels higher than 103 degrees Fahrenheit. Extremely high fevers can cause serious damage to the organs and brain, and they may be an indicator the individual's body isn't equipped to fight off the infection.