There are many reasons for small red dots on a woman’s chest, such as localized capillary hemorrhage, allergies, neurodermatitis, eczema and so on. 1. Local capillary hemorrhage: women who rub their breasts too hard during bathing may cause the local capillaries to rupture, which leads to part of the blood accumulating in the subcutaneous, resulting in the phenomenon of small red dots on the chest. 2. Allergy: contact with allergic substances, such as allergies to underwear, bathing supplies, allergies, etc., can also cause the phenomenon of small red dots on the woman’s chest, and will also be accompanied by itching, tingling and other phenomena. 3. Neurodermatitis: long-term alcohol, or emotional upset, anxiety, etc., may cause neurodermatitis, resulting in the phenomenon of localized red dots, which can occur on the chest, can also occur in other locations. 4. Eczema: women’s breasts wrapped in the breast for a long time, if the quality of underwear is not good, or not ventilated, may induce localized eczema, which stimulates the skin of the breasts, resulting in small red dots on the woman’s chest. Causes of small red spots on the chest of women are very many reasons, such as hemangioma and other reasons, after the symptoms are recommended to go to the hospital in a timely manner to improve the examination, a clear diagnosis, to give targeted treatment, not to ignore the symptoms, to take it lightly.