Diseases

Vitiligo: the symptoms

Vitiligo is linked to the depigmentation of certain areas of the skin. Apart from the hands or feet, the areas around the facial openings are the most affected: around the mouth, nose, eyes or ears.

In fact, it is the melanocytes that "fall asleep". We do not know why. Melanocytes are the cells that allow pigmentation of the skin and hair.

Suddenly, often before the age of 20, these melanocytes no longer produce melanin. It is the concentration of melanin that determines the color of the skin. If the melanocytes no longer produce melanin, the skin and hair become white.

Sometimes the pigmentation restarts. This can happen: pigmentation resumes, melanocytes wake up. This can happen as a result of treatment or spontaneously.

Again, we do not know why. And, when the pigmentation restarts, it is, most of the time, at the level of a hair! Why ? Because, under the hair, at the level of the pore of the skin, at the bottom, is a sheath. In this sheath pilaris, sometimes, are still some melanocytes.

The pigment can then go up. We observe at the level of the hair, and in the middle of a depigmented area (white), a small dark spot which is reformed. Like an island of repigmentation in the middle of a white plate.

What disease (of skin) is behind these symptoms?

You want to react, to give your testimony or to ask a question? See you in our FORUMS Diseases and skin care!

Popular Posts

Category Diseases, Next Article

Malaria: Sources and notes - Diseases
Diseases

Malaria: Sources and notes

- Item n ° 99: Malaria, Pilly - Preparation ECN - Item 99 - College of University of Infectious and Tropical Diseases. - E-Pilly Trop, Infectious and Tropical Diseases, 2012 Web edition, University College of Infectious and Tropical Diseases.
Read More
My child has asthma - Diseases
Diseases

My child has asthma

Nearly one in ten children of school age suffers from asthma. And three times out of four, this asthma is of allergic origin . Quite often, there is a history of allergies on the side of the parents, in any case the doctor must look for this eventuality. Asthma is a chronic respiratory disorder that is characterized by inflammation and constriction, closing the airways
Read More
Pericarditis: treatments - Diseases
Diseases

Pericarditis: treatments

Medication In case of pericarditis are prescribed treatments against inflammation: non-steroidal anti-inflammatory drugs, or corticosteroids, plus rest. The anti-inflammatory treatment lasts about a week, although usually the pain passes quickly. If symptoms persist or worsen, it is necessary to investigate the causes, and a pericardial biopsy may be considered
Read More
Gastroenteritis: sources and notes - Diseases
Diseases

Gastroenteritis: sources and notes

Authors: Dr. MC Bonduelle, Dr. Nicolas Evrard and Dr. Ada Picard. Sources: - Rotavirus, Rotavirus diarrhea agent, National Research and Safety Institute for the prevention of accidents at work and occupational diseases. - Acute diarrhea and dehydration, Faculty of Medicine of Montpellier. - Rotavirus Infections: Suspension of Infant Immunization Recommendations, HCSP, May 2015
Read More