Why Shivering After Spinal Anaesthesia?

Surgery and anaesthesia cause shivering due to thermal dysregulation as a compensatory mechanism and is worsened by vasodilatation from spinal anaesthesia that redistributes core body heat.

How long does shivering last after anesthesia?

Although it can be extremely distressing, shivering is not usually dangerous1 and should stop within 20 to 30 minutes. It can occur after a general anaesthetic and during or after a regional anaesthetic (for example, an epidural or spinal).

Is it normal to have chills after anesthesia?

Chills and shivering.

It's common for your body temperature to drop during general anesthesia. Your doctors and nurses will make sure your temperature doesn't fall too much during surgery, but you may wake up shivering and feeling cold. Your chills may last for a few minutes to hours.