Although the candiru currently provide no benefits for humans either commercially or as a food source, there have been reports of detrimental interactions of candiru entering the urethras of unwitting bathers. Upon entry, they can cause extreme pain in the affected region by erecting their opercular spines and lacerating the mucus membranes of the urethras (Gudger, 1930). The most common treatment is amputation of the affected area; however, if left unattended, death from shock and blood loss can ensue. A native herb has been found to digest the spines of the catfish, allowing for easier evacuation of the parasite (Breault, 1991).
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