The likelihood of HIV transmission from clotted blood is relatively small, but it should not be taken seriously, and if there is contact, medical attention should be sought for prompt treatment. The survival time of HIV in vitro is relatively short, and when HIV leaves the host cell, there will be a lack of raw materials and energy for viral replication, and the virus will die soon. So consider the coagulated blood HIV activity is low, generally does not have infectious activity. In addition, normal human skin has a certain protective function, and intact skin in contact with coagulated blood is generally not infected. For contact with HIV blood, even if it is coagulated, it is recommended to treat it promptly by washing it with running water for more than two minutes and seeking medical attention.