Melanonychia

Discolored Nails Extra – What is Melanonychia and What Causes It?

Melanonychia is brown or black discoloration of a nail.

Melanonychia can present in individuals of all ages, including children, and affects both sexes equally. It can appear on fingernails and toenails. It is more prevalent in people with skin of color.

• Nearly all Afro-Caribbean people will develop black-brown pigmentation of the nails by the age of 50
• Melanonychia affects up to 20% of Japanese people
• White-skinned people are less commonly affected

What Causes Melanonychia?

Các tấm móng tay is a hard, translucent kết cấu made of chất sừng. It is not normally pigmented.
Melanocytes typically lie dormant in the proximal nail ma trận where the nail originates.
Các tấm móng tay is usually semitransparent because of a lack of melanin, however, under some circumstances, melanin can cause nail discoloration, leading to melanonychia.

Longitudinal Melanonychia

Melanin is deposited into the growing nail when melanocytes are activated, resulting in a pigmented band — this is longitudinal melanonychia.

The deposition of melanin in the tấm móng tay can result from 2 processes:

• Melanocytic hyperplasia – Melanocytic hyperplasia refers to an increased number of melanocytes within the nail matrix.
• Melanocytic activation – Melanocytic activation is an increase in the production and deposition of melanin into the nail plate cells, without an increase in the number of melanocytes.

What is Melanoma of the Nail Unit?

75%-90% of Melanoma of the đơn vị đóng đinh most commonly affects the thumbs, index fingers and big toes. 

Melanomas can originate:

• From the Ma trận móng tay – Subungual melanoma
• From under the Tấm móng – Ungual melanoma
• From the skin beside the tấm móng tay – Periungual melanoma

Kỹ thuật viên làm móng có thể giúp gì?

Như một thợ làm móng, your knowledge should help you spot any changes in the tấm móng tay or skin surrounding the tấm móng tay early – consumers doing their own nails need to be made aware of this fact. To the untrained eye normal longitudinal sắc tố stripes might be mistaken for a melanoma. If you or your client are worried about any changes in color to the tấm móng tay or surrounding skin you need to contact a medical doctor.

Never tell a client that they have cancer, you don’t know that to be a fact.

You can suggest that letting a medical professional have a look is a wise thing to do, just in case.

How to recover the nail plate:

Do not apply artificial nail products until the cause of the pigment stripes is known. Nail Unit maintenance is always important. If the Medical Professional is happy that it’s just a pigment stripe and as long as the nail plate itself is intact then feel free to make your client happy with a sơn gel sự nâng cao.

Nail Enhancements:

If the pigmentation is caused by overactive melanocytes and the nail plate is intact there is no contra indication for nail enhancements or lớp phủ móng tay.

How to prevent Melanonychia:

You can’t.

Contra Indication:

If the nail unit is painful or swelling occurs refer to a MD