Conditions list medically reviewed by George Krucik, MD, MBA
Subarachnoid hemorrhage (SAH) refers to bleeding within the subarachnoid space, which is the area between your brain and the tissues that cover it.
A bite from a venomous snake should always be treated as a medical emergency. Even a bite from a harmless snake can lead to an allergic reaction or infection.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.