A lot of red dots on the thighs may be caused by diseases such as papular urticaria, allergic purpura and eczema.
1. papular urticaria: its cause may be fleas, lice, mites and other insect bites, the patient’s skin will appear in clusters or scattered fusiform papules, mostly reddish, common in exposed areas, some patients will appear thighs with a lot of red dots of symptoms.
2.Allergic purpura: the cause of allergic purpura is not yet clear, it may be due to infection, immunity and hereditary factors, clinical manifestations for the limbs, buttocks and other places of the skin purple-red pimples, joints, swelling and gastrointestinal tract abnormalities and other symptoms.
3. Eczema: refers to chronic itching and inflammatory diseases, the causes of the onset of genetic, immune function abnormalities and microbial infections and other factors related to the clinical manifestations of erythema, corn size pimples, and mossy changes and other symptoms, the rash can be distributed in all parts of the body.
There are many reasons why there are a lot of red dots on the thighs, and it is recommended that the patient consult a doctor for examination to clarify the cause of the disease.