If you have these lines on your nails, you should pay attention.

• Dark streaks (brown, black, or red) under the nail
• Sudden thickening or splitting
• Noticeable changes in nail shape
• Pain or swelling around the nail

In rare cases, discoloration could point to serious conditions like Melanoma or infections affecting the heart such as Endocarditis, though these are far less common.

What You Can Do

If your nail ridges are mild continue reading …