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It turns out that fish pedicures aren’t just a bizarre beauty ritual — they’re also potentially dangerous. This week, the U.S. Centers for Disease Control and Prevention published a new report that examined the types of bacteria associated with Garra rufa, an inch-long toothless carp that nibbles away at dead skin. Citing the risk of dangerous skin and soft-tissue infections for people with open sores, skin cuts, underlying medical conditions such as diabetes, the CDC warned against the practice. Our advice? Stick with the pumice stone and leave the fish alone.