Red raised dots on the skin may be caused by keratosis pilaris, eczema, papular urticaria, spider nevus, and so on.
1. Keratosis Pilaris: It is caused by the long-term accumulation of keratin at the mouth of the hair follicle, resulting in blockage. The degree of keratinization will become heavier and heavier with the intensity of external cold air stimulation, which will lead to the appearance of some small red dots on the skin that feel raised one by one when touched.
2. Eczema: when the disease flares up, it will lead to the appearance of red spots and pimples on the skin, and with the development of the disease and repeated scratching, moss-like changes can appear, accompanied by obvious itching symptoms.
3. papular urticaria: when the skin is bitten by mosquitoes, it can cause an allergic reaction to the skin, which leads to the appearance of red pimples on the skin, accompanied by itchy symptoms, manifested as small red dots on the skin long raised.
4. Spider nevus: Hepatitis, cirrhosis and other diseases can lead to an increase in the content of estrogen, which leads to the appearance of spider-like red dots on the skin, but a pressure can fade. Red dots are composed of dilated capillaries, radial growth, so the name spider nevus.
When red raised dots appear on the skin, it is recommended to go to the hospital in time to clarify the cause of the disease and exclude other diseases, so as to facilitate targeted treatment.