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Snake bites

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Introduction
A snake will sometimes bite in self-defence if it is disturbed or provoked. Some snakes are venomous and can inject venom (toxin) as they bite.
Symptoms of snake bites
Adder and foreign snake bites can cause similar symptoms. Severe venomous snake bites can cause serious symptoms, such as muscle paralysis and anaphylaxis.
Why snakes bite and how venom works
When a snake bites and injects venom, its aim is usually to immobilise its prey.
Treating snake bites
There are a number of misconceptions about what to do immediately after being bitten by a snake. You should never try to suck or cut the venom out.