There are no tests required to diagnose widow spider bites, or<unk>  symptoms. The diagnosis is clinical and based on historic evidence of widow spider bites. Pathognomonic symptoms such as localized sweating and piloerection provide evidence of envenomation. Diagnosis in most people includes reporting contact with a Latrodectus spider. Overdiagnosis is a risk, without a spider to identify. However, without a history of contact, the diagnosis may be missed as symptoms overlap with a variety of other serious clinical syndromes such as tetanus or acute abdomen. Blood values are typically unimportant but may be needed to show myocarditis or dehydration from vomiting.
Latrodectism
Klismaphilia
Tourettism
Macrodystrophia lipomatosa
Dacryphilia
Hapalonychia
Palilalia
X-linked hypertrichosis