is it bad when a ring turns your finger green

Hello, it's not inherently bad if a ring turns your finger green. It simply means that the metals in your ring are reacting with the acids in your skin. This is commonly seen with copper or bronze rings. However, it might also indicate that your ring isn't pure gold or silver, if it was sold as such.

Usually, no. The green color is basically just a form of oxidation, similar to rust. It's not likely to cause harm to you. If you notice any rashes or itchiness, however, it may indicate a possible allergic reaction to the metal in the ring, in which case you should discontinue wearing it.

You could try to limit the ring's exposure to water and cleaning products. This helps slow down the oxidation process. Additionally, you could consider coating the inside of the ring with clear nail polish. Also, if you're prone to this issue, it may be worth considering higher quality or hypoallergenic jewellery.

You're welcome! I'm glad I could assist. Don't hesitate to reach out if you have more questions or need further clarification. Stay safe!