Red dots on the neck may be caused by allergic diseases, pressure purpura, folliculitis, cherry angioma and other diseases.
1. Allergic diseases: atopic dermatitis, solar dermatitis, allergic reactions caused by scarf necklaces, prickly heat, resulting in the appearance of many localized red dots, which will also be accompanied by a significant itching sensation.
2. Stress purpura: affected by certain factors, such as crying, constipation, resulting in dilation of capillaries in the dermis, rupture, bleeding, the neck may appear a lot of red dots.
3. Folliculitis: Increased sebaceous gland secretion and Propionibacterium acnes infection form acne, resulting in localized red dots. Bacteria invade the hair follicles, resulting in inflammation of the hair follicles, localized red dots may also appear.
4. Cherry hemangioma: the cause of cherry hemangioma is still not very clear, because the endothelial cells abnormal proliferation of blood vessel proliferation, the diseased skin may appear red blood spots.
Red dots on the neck may have other reasons, such as skin photo-aging leads to skin barrier damage, causing vascular nevus, red dots will appear on the neck. It is recommended to go to the dermatology department of the regular hospital for examination to determine the cause, and then combined with the cause of targeted treatment, do not blindly deal with their own.