Police say blood was found in Ayla Reynold's home in Waterville.
Department of Public Safety spokesman Steve McCausland says some of the samples tested had come from the toddler, but there is still more testing to be done.
Police told the family that the amount of blood is "more than what a small cut would produce".
Ayla Reynolds was 20 months old when she was reported missing 6 weeks ago (Dec 17) from her crib in her father's home.
