There is little local damage or necrosis. The bite usually is perceived as a sharp pinprick. Two red puncta are frequently seen at the site with mild erythema. Severe myalgias and muscle cramping develop. The reaction can simulate an acute surgical abdomen.
Death is rare, usually occuring among young children.
Treatment includes antivenin, especially for children, elderly, or those with underlying cardiac or pulmonary disease. Aspirin, acetaminophen, morphine, muscle relaxants and calcium have been used. They usually only bite after significant provocation. Even then, the bite usually produces pain but minimal tissue damage. Tarantulas also can flick hairs toward an agressor that cause a pruritic dermatitis.