Elizabeth Martin and Robert Hine. Latest Edition (7 ed.) Fully revised and updated, the sixth edition of this dictionary provides comprehensive coverage of biology, biophysics, and biochemistry, as well as key terms from medicine and palaeontology.
For example, if someone scratches a mole until it bleeds, the resulting lesion, a crust, is now a secondary skin lesion. The most common secondary skin lesions include: 1  crust: a crust, or a scab, is created when dried blood forms over a scratched and irritated skin lesion. 2  ulcer: typically caused by a bacterial infection or physical trauma. 3  scale: patches of skin cells that build up and then fall off the skin.
Three Methods:Removing Fresh BloodRemoving Dry BloodRemoving Stains from Specific SurfacesCommunity Q&A. Blood stains are really tricky to remove once they set. Removing them before the item is washed and dried is your best bet, but there are ways to get dried blood out of clothing and linens as well. To remove fresh blood stains, soak the stain in cold water and scrub it thoroughly with a salt and water paste.