Have you noticed any streak-like patterns of darkness in your nails? If the answer is yes, don’t fret; it’s a common occurrence among all kinds of people. Generally, these black marks are absolutely nothing to be concerned about.
Pigment cells, which become trapped in the nail bed when subjected to trauma like fingernail picking or manicures, or certain medical conditions like melanoma, cause streaks to appear on the nail.
If you’re finding dark scars running across your nails and you’re unsure of the source, seeing a medical professional is highly recommended. Your doctor can take a look to check for any potential underlying issues and make sure that further attention isn’t necessary.
The majority of black marks across the nails are nothing to be alarmed about, but if they have raised any eyebrows, it is wise to consult a physician for reassurance.