The world celebrates World Vitiligo Day On the 25th of June every year, it is an annual occasion that aims to raise awareness of this common skin disorder, correct misconceptions associated with it and highlight the importance of psychological and medical support for those affected.
اضافة اعلان
Vitiligo is a skin condition that affects millions around the world, making it one of the diseases that requires a precise scientific understanding of its nature, causes, and ways of dealing with it, away from social stigma or incorrect beliefs.
According to a report issued by the National Institute of Arthritis and Diseases Muscles Understanding the disease correctly is an essential step in improving the quality of life of those affected by the disease and providing them with appropriate medical and psychological support.
What is vitiligo and how does it appear on the skin?
Vitiligo is a chronic skin disease that results in the skin losing its natural color and the appearance of what are known as "white vitiligo spots" with clear borders in different areas of the body.
Vitiligo in the skin is caused by an imbalance in the melanocytes responsible for producing melanin, the pigment that gives the skin, hair and eyes their natural color. As these cells are damaged or stop working, symptoms of vitiligo on the skin gradually begin to appear as light patches that turn chalky white over time.
Where does vitiligo appear in the body?
Vitiligo can appear in any area of the body, but it often starts in areas that are more sensitive or exposed to external factors, such as:
Areas most exposed to sunlight such as the face, hands, feet, and arms.
Mucous membranes such as moist tissues inside the mouth and nose.
scalp or beard, which can lead to vitiligo and premature graying of hair in the affected area.
In less common cases it may extend to the retina or inner ear.
Is vitiligo an immune or genetic disease?
According to approved medical research, vitiligo is classified as a multifactorial disease, combining the immune and genetic aspects, making it a complex condition that is not related to a single direct cause.
Immune factor
Vitiligo is primarily an autoimmune disease, in which the body's immune system is disrupted, treating the melanocytes responsible for producing the pigment melanin as foreign cells, selectively attacking and destroying them. As a result, areas of the skin lose their natural color and appear as distinct white patches.
The U.S. National Institute of Arthritis, Musculoskeletal Diseases, and Dermatology (NIAMS) notes that people with a personal or family history of other immune diseases, such as Thyroid diseases Or alopecia, they are more likely to develop vitiligo.
Genetic factor
Genetics plays an important role as a risk factor, as having a family history of vitiligo increases the likelihood of it developing. Mutations and changes in genes linked to immune system function and chromosomal cell structure have also been observed and can be inherited across generations, making some people genetically predisposed to the onset of the disease when exposed to environmental triggers such as stress or skin injuries.
Vitiligo is not only a genetic and immune disease, but also the result of an overlap between genetic predisposition and the immune system's response.
Causes of vitiligo and its environmental triggers
In addition to genetic factors and autoimmune predisposition, medical studies indicate that there are a number of environmental triggers that may contribute to the onset or severity of vitiligo,
especially in genetically predisposed people, including:
Stress Psychological Severe Acute stress may trigger an autoimmune response that affects melanocytes.
Injuries Physical For the skin like Sunburn Severe, wounds, or chronic friction, which is known medically as the "Köppner phenomenon", where vitiligo spots may appear at the site of the injury.
Exposure Chemist: Contact with some strong industrial chemicals or solvents, which may affect skin cells and increase the susceptibility of spots.
Different Types of Vitiligo
Vitiligo is divided into several main patterns based on the way the spots spread and where they appear in the body:
General vitiligo:
It is the most common pattern among those affected, where white spots appear symmetrically and symmetrically on both sides of the body, such as the hands or knees together, and develop gradually over years.
Segmental vitiligo:
It often appears at a young age, is limited to one side of the body or a specific area such as one arm or part of the face, and often stops spreading after a short period (one to two years).
Local vitiligo:
It is characterized by the appearance of small, limited white spots in one or several areas, without spreading widely or rapidly for many years.
Mass vitiligo:
It is a rare type, in which the body loses most of its natural pigment, as the white spots expand to cover most parts of the skin and reach more than 80% of the total body area.
Medically available vitiligo treatment methods
There is no definitive, radical cure for vitiligo, but there are several medical options aimed at stopping the progression of the disease, repigmenting the skin, or even out skin tone as much as possible:
Topical Treatments
Use strong corticosteroid creams or calcineurin inhibitors, as well as modern topical inhibitors that work to suppress the immune attack on the pigment cells.
Light Therapy
It relies on narrow-band ultraviolet light or excimer lasers, with the aim of stimulating inert melanocytes in the skin to gradually reproduce the pigment.
Surgery
In cases of stable vitiligo that hasn't changed for years, skin transplants or pigment cell transplants can be used to transfer healthy cells to the affected areas.
Remove the remaining dye
This option is used in cases of generalized vitiligo, where the remaining skin is gradually lightened to achieve a uniform body color.
How can vitiligo be prevented and skin protected?
Because the disease is linked to immune and genetic factors, there are no preventive methods to prevent vitiligo from occurring in the first place, but there are preventive measures Skin Protection Infected and preventing the deterioration of the condition:
Security Who is it The sun Employment: sunscreen Broad-spectrum and wear protective clothing, because the affected skin lacks natural protection from UV rays.
Avoid Injuries Skin Such as tattoos, severe itching, or wounds, as they may stimulate the appearance of new spots.
Avoid Materials Chemical Irritant: such as industrial solvents and harsh products that may affect skin cells.
Vitiligo remains a biomedical disorder caused by the interaction of immunity and genetics, not just a cosmetic problem. A rigorous scientific understanding of the disease contributes to providing appropriate support to those affected free from misconceptions.
