Rygors: Symptoms, Causes, and When to Seek Medical Attention

Rigors, also known as shivering or chills, are a sudden, intense shaking of the body that occurs when the body's temperature rises rapidly. Rigors are often accompanied by other symptoms, such as:

* Fever

* Headache

* Muscle aches

* Fatigue

* Nausea

* Vomiting

* Diarrhea

Rigors are most commonly caused by infections, such as:

* Bacterial infections, such as pneumonia, sepsis, and meningitis

* Viral infections, such as influenza, the common cold, and gastroenteritis

* Parasitic infections, such as malaria and schistosomiasis

Rigors can also be caused by non-infectious conditions, such as:

* Cancer

* Drug reactions

* Heat stroke

* Hypothermia

If you experience rigors, it is important to see a doctor to determine the cause and receive treatment.