just did an injection in the shoulder and immeditaly after i took out needle blood started to gush out, put a paper towl over it and stoped bleedin within 30 secs but lot of blood came out after injection.....im not to worried maybe wounder what can cause that do happen? but my question is did the test stay in my shoulder or come out with my blood???? should i do another injection???? Injection was near a bumb(pimple) not saying that was it but my opionion is thats what cause it.