The larger dime-size objects are seen at the brain stem. Some wedge-shaped implants are found near the shin bone on the leg. However, implants have been found in hands, feet, and arms as well. Abductees under hypnosis recall seeing these bead-like objects being forcibly inserted under or behind the back of their own eyeballs. There is almost no limit as to where implants can be inserted into a person's body.
Implants often go undetected during a person's lifetime unless medical testing is needed.
Tests such as MRI's and x-rays both detect implants. Dental x-rays are also known to reveal implants. When discovered on MRI's or x-rays, medical staff will not necessarily bring these unexplainable objects to the attention of the patient. Implants may be composed of a variety of metals or other materials found on Earth. However, the underlying atomic structure of the molecules wrapped with other substances may be a technology not yet known to exist on Earth.