Answer :
Final answer:
The darkening of fingernails or toenails can be due to fungal infections, injury, exposure to certain substances, or serious conditions like melanoma. It is important to seek medical attention for unexplained changes.
Explanation:
The darkening of the fingernails or toenails is often associated with certain health conditions. This includes fungal infections such as dermatophytic skin infections that also encompass conditions like athlete's foot, ringworm, and jock itch.
Such infections can cause changes in the color, shape, or texture of the nails. However, darkening may also result from traumatic injury or exposure to certain products or substances. Other serious conditions, like melanoma, a type of skin cancer, can also cause this symptom and usually present as a dark, often black streak appearing under the nail. It is of utmost importance to seek medical attention if such changes occur without a clear explanation.
Learn more about Darkening Nails here:
https://brainly.com/question/9279273
#SPJ11
