Question:

Why are your hands black and your palms white?

Answer:

A pale area of the skin is the result of fewer melanocytes than usual, whereas a darker area indicates more numerous melanocytes.

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Zoology
Monobenzone

4-(Benzyloxy)phenol, or Monobenzone, is an organic chemical in the phenol family with chemical formula C13H12O2. It is used as a topical drug for medical depigmentation.

Monobenzone is the monobenzyl ether of hydroquinone. Monobenzone occurs as a white, almost tasteless crystalline powder, soluble in alcohol, benzene, and diethyl ether, and practically insoluble in water.


Medical signs

A medical sign is an objective indication of some medical fact or characteristic that may be detected by a physician during a physical examination or by a clinical scientist by means of an in vivo examination of a patient.

Signs may have no meaning to the patient, and may even go unnoticed, but may be meaningful and significant to the healthcare provider in assisting the diagnosis of medical condition(s) responsible for the patient's symptoms.

Melanin Biology White Melanocyte
melanocytes

Melanocytes are melanin-producing cells located in the bottom layer (the stratum basale) of the skin's epidermis, the middle layer of the eye (the uvea), the inner ear, meninges, bones, and heart. Melanin is the pigment primarily responsible for skin color.


melanocytes

Melanocytes are melanin-producing cells located in the bottom layer (the stratum basale) of the skin's epidermis, the middle layer of the eye (the uvea), the inner ear, meninges, bones, and heart. Melanin is the pigment primarily responsible for skin color.

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