Dried Blood?

Answer: Try spraying the area with BISSELL OxyPro® or OxyPro® Pet. Gently work the solution into area with a small brush, sponge or cloth using light strokes from the edges of the stain to the center. When you reach the center of the stain, lightly pinch in an upward motion. Do not rub the stain. Wait 5 minutes.
Use an upright deep cleaner to clean the soiled area with BISSELL 2X Professional Deep Cleaning Formula or 2X Fiber Cleansing Formula. If you are using a portable deep cleaner, use BISSELL 2X Little Green Formula.

If any blood stain remains treat it with OxyPro® and let stand overnight.