Small red dots in the skin on the legs may be caused by atopic dermatitis, eczema, purpura and other reasons.
1. Allergic dermatitis: small red dots in the skin on the legs may be allergic eczema, if the skin comes into contact with some sensitizing substances, it can lead to allergic dermatitis, which can be manifested as small red dots in the skin.
2. Eczema: small red dots in the skin on the legs may also be eczema, eczema cause is not clear, occurring in the exposed parts of the skin, such as the face, hands and feet, calves and other parts of the skin, can be manifested as erythema, red pimples and so on.
3. Purpura: small red spots in the skin on the legs may also be purpura, due to abnormalities in the structure and function of the blood vessel wall, abnormalities in the coagulation function and abnormalities in the number and function of platelets can be caused by extravasation of erythrocytes, resulting in purplish-red spots on the skin, and the pressure of the color does not fade.
Small red spots in the skin on the legs are recommended to go to the hospital in a timely manner, to clarify the cause of the disease, under the guidance of the doctor to carry out active treatment, do not take medication without authorization, to avoid adverse reactions.