Splinter hemorrhage (nail trauma) Fungal infection Melanonychia Melanoma "A narrow black ... Most of the time, thin, vertical ...

In the image, a thumbnail is visible, with a strong dark line running through ... of cases are diagnosed in people under the age of 50. The main treatment for melanoma is surgery – and, if ...

Similarly, dark lines under the nails might hint at melanoma, and clubbed nails can suggest lung or heart disease. Recognising these subtle signs is crucial, as they often serve as early warnings ...