Galenbohne

Many marks are flush with the skin surface while others are puffy or raised.
These marks are brought on by abnormally developed blood vessels and they may develop into bigger as a baby ages.

For close by wires, e.g. in a cable or a coil, the AC resistance can be affected by proximity impact, which could cause an extra improve in the AC resistance.

If layers of lifeless skin are allowed to pile up, they can change into a breeding ground for micro organism.