|The fangs of a Red-Back Spider are tiny and it's bite may often go unnoticed, but, often a sharp pin-prick may be felt. This is generally followed by severe pain at the site of the bite, leading to more general pain.
Other symptoms of venomous spider bites may include headache, nausea, vomiting, dizziness, abdominal pain, and partial loss of muscle control.
Sweating occurs in varying degrees, particularly around site of the bite.
Swelling of the affected area is common, as is a quickening of the heart-beat.