The scientific name of the five-step snake is the sharp-nosed adder. It is a highly venomous snake. The poison of the five-step snake is blood-circulating venom. It is the representative of sequential venomous snakes. After being bitten by the sharp-nosed adder, the victim will have wounds. Immediate symptoms of pain and bleeding, followed by swelling, blistering, tissue gangrene and ulcers, followed by dizziness and rapid heartbeat. Viper.com also has pictures of horrifying bites from five-step snakes. Being bitten by a five-step snake can cause large-scale ulcers in the patient. In severe cases, the lower limbs can wither and fall off, causing lifelong disability. There are also many patients who have had their limbs amputated after being bitten by a five-step snake. These are the sequelae of bites from poisonous snakes that circulate in the blood.