Using steel wires for jewelry or decorations generally poses minimal health risks when used properly. However, there are a few considerations: allergic reactions can occur in individuals sensitive to nickel, which is often found in stainless steel. Additionally, improper use or sharp edges can lead to cuts or injuries. It's important to ensure that the steel is of high quality and that any jewelry made is smooth and free of sharp points to minimize the risk of injury. Regular cleaning and maintenance are also recommended to prevent any potential health risks associated with bacteria buildup or skin irritation.