Dr. Rashmi Ravindra explains that chemical exposure can cause white skin conditions distinct from vitiligo, such as contact leukoderma.
Key Takeaways
- Chemical exposure can cause white skin conditions that mimic vitiligo but are different diseases.
- Vitiligo is autoimmune and genetic, whereas contact leukoderma is caused by chemical contact.
- Workplace and cosmetic chemicals are common sources of contact leukoderma.
- Proper identification of the cause of white skin is crucial for effective treatment.
- Not all white skin patches should be diagnosed as vitiligo.
Summary
- Dr. Rashmi Ravindra is a consultant dermatologist and cosmetic dermatologist.
- Vitiligo is an autoimmune disease with a genetic predisposition causing white skin patches.
- Not all white skin conditions are vitiligo; some are caused by chemical exposure.
- Exposure to chemicals like monobenzyl ether of hydroquinone in leather factories can cause contact leukoderma.
- Aliphatic and aromatic compounds of phenols and catechols at workplaces can induce contact leukoderma.
- Certain cosmetic chemicals such as azo dyes in lipsticks, eyeliners, and lip liners can cause contact leukoderma.
- PPD in hair dyes and PTBP compounds in perfumes and deodorants are also linked to contact depigmentation.
- Contact leukoderma is distinct from vitiligo and is referred to as contact-induced depigmentation.
- Contact leukoderma results from chemical exposure rather than autoimmune causes.
- Understanding the difference between vitiligo and chemical-induced leukoderma is important for diagnosis and treatment.











