Can a common adder kill you?

Yes, a common adder (Vipera berus), which is the only venomous snake found in the UK, can potentially be dangerous to humans. While bites are rarely fatal, they can cause significant pain, swelling, and other severe symptoms, particularly in vulnerable individuals such as children, the elderly, or those with pre-existing health conditions. Immediate medical attention is recommended if bitten. However, fatalities are extremely rare due to the availability of medical treatment.