The bite of this spider is localized and produces considerable necrosis which may lead to an unsightly scar. The necrotic area turns black and dry and may slough in a few days, leaving a granular area. Healing usually take place slowly and secondary infection is common. Painful edema and erythema may develop within an hour of the initial bite. Systemic involvement may also occur, being characterized by anemia, hematuria, fever, cyanosis and occasionally convulsions.
Recovery generally provides a solid immunity.
There are several other common spiders that are often confused with those that are venomous. Although their bites may be painful, they are not considered venomous.