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Common Wrinkles Appearing on the Face. Dynamic wrinkles that form in the outer corners of the eyes are often called crow’s feet. The folds between your eyebrows that show up when you furrow your ...
In Canadian women, the upper chest is commonly affected. [10] Spider veins on face and neck; Loss of color and fullness in lips; Symptoms of photoaging attributed to prolonged exposure to UV: Wrinkles deepen and forehead frown lines can be seen even when not frowning. Telangiectasias (spider veins) most commonly seen around the nose, cheeks and ...
Hyperpigmentation can be diffuse or focal, affecting such areas as the face and the back of the hands. Melanin is produced by melanocytes at the lower layer of the epidermis . Melanin is a class of pigment responsible for producing color in the body in places such as the eyes, skin, and hair.
Periorbital hyperpigmentation, also known as hereditary dark circles, is characterized by darker skin around the eyes caused by the presence of additional melanin.It is an extremely common hereditary human characteristic and is frequently found on individuals with dark skin.
Alfred Blaschko, a private practice dermatologist from Berlin, first described and drew the patterns of the lines of Blaschko in 1901. He obtained his data by studying over 140 patients with various nevoid and acquired skin diseases and transposed the visible patterns the diseases followed onto dolls and statues, then compiled the patterns onto a composite schematic of the human body.
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin , the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [ 3 ]
Acanthosis nigricans is a medical sign characterised by brown-to-black, poorly defined, velvety hyperpigmentation of the skin. [1] It is usually found in body folds, [2] such as the posterior and lateral folds of the neck, the armpits, groin, navel, forehead and other areas.
They range in color from light brown [5] to red or black and are located in areas most often exposed to the sun, particularly the hands, face, shoulders, arms and forehead, and the scalp if bald. The spots derive their name from the fact that they were once incorrectly believed to be caused by liver problems, but they are physiologically ...