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All twenty nails, skin, and mucous membranes should be examined during the initial physical examination, bearing in mind all possible causes of brown-to-black nail coloration. It is best to rule out the possibility that an exogenous substance on top of or beneath the nail plate is the cause of the linear nail coloring.
Onychomadesis is the separation and falling off of a nail from the nail bed. Common causes include localized infection, minor injury to the matrix bed, or severe systemic illness. It is sometimes a side effect of chemotherapy or x-ray treatments for cancer. A new nail plate will form once the cause of the disease is removed.
Course of action: Get any brown pigmentation on your nail checked out by a dermatologist. "Lots of things can be detected in the nail," said Dr. Phoebe Rich, director of the Nail Disorder Clinic ...
Brown spotted nails Dark brown or black vertical lines on the nail bed should never be ignored. This may be a warning sign for melanoma, which is a type of tumor associated with skin cancer.
Chromonychia is an abnormality in color of the substance or surface of the nail plate or subungual tissues. [1]: 658 Chromonychia can be induced by antineoplastic drugs with few distinct forms, the most frequently seen is melanonychia. [2]
Onychomycosis, also known as tinea unguium, [4] is a fungal infection of the nail. [2] Symptoms may include white or yellow nail discoloration, thickening of the nail, and separation of the nail from the nail bed. [2]
A thin black line from the cuticle kept growing. It was the sign of rare, aggressive subungual melanoma. She got a 2nd opinion, advocated for herself.
Half and half nails (also known as "Lindsay's nails") show the proximal portion of the nail white and the distal half red, pink, or brown, with a sharp line of demarcation between the two halves. [ 1 ] : 785 The darker distal discoloration does not fade on pressure, [ 2 ] which differentiates Lindsay's nails from Terry's nails .