A black-and-blue nail (also called a black nail) is usually caused by sudden or repetitive injury to a toe. This might occur during sports that involve running or stopping quickly. The injury may also result from a heavy object falling on a toe. If your toe is black and blue but not injured, see your healthcare provider immediately.
![](https://twnlivestorage1.blob.core.windows.net/twn-media-public/KRM64857A/KRM64857A_en_g00.jpg)
Text - Understanding Black-and-Blue Nails
![](https://www.refinery29.com/images/11452334.jpg?format=webp&width=720&height=899&quality=85)
9 Nail Colors That Go With Absolutely Everything
![](https://twnlivestorage1.blob.core.windows.net/twn-media-public/KRM63912A/KRM63912A_en_g00.jpg)
Text - Foot Surgery: Bone Spurs
![](https://i.ebayimg.com/images/g/cwoAAOSwXlBkdEyy/s-l1200.webp)
French Blue Black Line False Nail Coffin Long Press on Nails for Nail Art 24pcs
![](https://media.allure.com/photos/62c73e958dc1b6e9b20ab326/16:9/w_2560%2Cc_limit/the%2520ultimate%2520guide%2520to%2520nail%2520shapes.png)
The Ultimate Guide to 12 Different Nail Shapes — See Photos
![](https://emismanis.files.wordpress.com/2015/01/20150106_232001-2.jpg)
Blue Morpho Butterfly Nail Art for Thyroid Disease Awareness Month – Emi's Manis
![](https://weheartthis.com/wp-content/uploads/2023/09/ss-black-and-blue-nails-2-1024x1024.jpg?x85605)
29 Top Black and Blue Nails for an Enchanting Mani
![](https://twnlivestorage1.blob.core.windows.net/twn-media-public/KRM65504B/KRM65504B_en_g00.jpg)
Text - Understanding Chemical Cardioversion
![](https://i.pinimg.com/736x/78/16/7d/78167da963a10e0629ca58f11bc491e9.jpg)
Black and blue ombre nails Blue ombre nails, Black ombre nails
![](https://www.scripps.org/sparkle-assets/preview_thumbnails/news_items/6820/default-0f58772c54e15047764c0e5217108bd2.jpg)
What Do Your Fingernails Say About Your Health? - Scripps Health
TikTok Light Blue Nails challenge: The meaning explained - PopBuzz