Eli5 : Why does it burn when water touches an open wound?

Question

Eli5 : Why does it burn when water touches an open wound?

In: 5

Answer 1

When water touches an open wound it causes a burning sensation because the wound is exposed to the water’s pH level which is slightly acidic. The acidic pH level of water can cause irritation to the wound, which can cause the burning sensation. Additionally, the open wound may already be inflamed, making it more sensitive and more likely to react to the pH level of the water.