White patches on neck may be related to vitiligo, post-inflammatory hypopigmentation, lichen planus and other factors.
1. Vitiligo: patients suffering from vitiligo may have white patches on neck, which is usually related to heredity and autoimmunity.
2. Post-inflammatory hypopigmentation: After inflammation of the skin, the melanin in the basal layer of melanocytes may be destroyed, leaving hypopigmented patches after the disease has healed, which may also lead to white patches on the neck.
3. lichen planus: if patients usually do not pay attention to the hygiene around the neck, it may lead to fungal infection, which may appear lichen planus. The disease is often manifested as round or oval brown, brownish-red, or white patches or plaques with occasional itching.
There may be other reasons for white patches on the neck, so it is recommended to go to the hospital in time to find out the cause and treat the symptoms.