Both a problem and a solution for artists, blood has become a medium of contemporary art practice. It is a powerful tool for visualising and deconstructing how are conceived perceptions populating concepts of violence, ritual and purity. Ana Mendieta, Regina José Galindo and Adrian Piper employ blood as a material signpost of immaterial phenomena, dispelling myths and questioning imaginary significations of the substance. They work with blood as it conveys preconceptions attending constructs of gender and race. Selected works by Mendieta, Galindo and Piper, including respectively Untitled (Self-Portrait with Blood), 1973, Perra (Whore), 2005 and Cornered, 1988 explore the interplay between blood in our veins and as reconstructed in our minds.