1 blood loss (caused by ulcers, some cancers, and other conditions; and, in women, during monthly periods); 2  a diet that doesn't have enough iron in it; 3  taking medications that interfere with the ability of the body to absorb iron; 4  an increase in the body's need for iron (for instance, in women during pregnancy). blood loss (caused by ulcers, some cancers, and other conditions; and, in women, during monthly periods); 2  a diet that doesn't have enough iron in it; 3  taking medications that interfere with the ability of the body to absorb iron; 4  an increase in the body's need for iron (for instance, in women during pregnancy).
I can tell you that your Celtic knot is a quaternary design - meaning it has four distinct sections within the design. Quaternary celtic knot meanings are upon the era, region, and artist of the design's inception (yes, more variables). Here are a few meaning possibilites of your Quaternary knot design... Indication of the four directions: North, South, East, West.
Celtic Eternity Knot (Or Celtic Infinity Knot) Celtic Infinity Knot Ring. Another Celtic Knot is the Celtic Eternity Knot or Celtic Infinity knot. These come in many different variations. They are all some kind of variation of the infinity symbol. The knot looks like a sideways figure 8. This symbol came out of the world of mathematics.