Black Widow Spider Bite Evaluation
Evaluation of a black widow spider bite begins with a history and physical examination. Without historical confirmation of a spider bite, this condition may be very difficult to detect.
Physical findings in someone with a black widow spider bite may include:
- Fang marks, redness and erect hair at the site of the bite
- High or low blood pressure
- Rapid heart rate
- Slow heart rate
- Severe muscle spasms
- Abdominal rigidity
There are no tests that help make the diagnosis of a black widow spider bite.
Continue to Black Widow Spider Bite Treatment
- Cohen J, Bush S. Case report: compartment syndrome after a suspected black widow spider bite. Ann Emerg Med. 2005 Apr;45(4):414-6. 
- Hawdon GM, Winkel KD. Spider bite. A rational approach. Aust Fam Physician. 1997 Dec;26(12):1380-5. 
- Reeves JA, Allison EJ Jr, Goodman PE. Black widow spider bite in a child. Am J Emerg Med. 1996 Sep;14(5):469-71.