Got the same sings on both of my arms, same place

Other conditions
1

Hello, i found this under my arm and im scared. Could it be related to blood or what?

2

Does it itch? I dont think you need to be scared. In what way do you think its related to blood?

3

Hello,
no it doesnt itch i just randomly noticed it. And since it reminded me of a hickey , i thought maybe my veins were clogged or something

4

If it doesnt itch and you feel OK and its not spreading I think you should just ignore it.
If it should start itching/spreading and you feel unwell then it may be one of the pityriasis. Not dangerous…see your doctor.