Purpura?

Shikay

Excuse my hairy legs 😂 but i tried to google purpura and it looked like this but doesn’t really get into detail can anyone help me and explain what this is? If anyone has had it? Is this serious or is there nothing to worry about or why I am even getting this it doesnthurt and I have no other symptoms I’m so confused 🤷🏽‍♀️