What causes small red spots on the body

Small red spots on the body may be related to allergic purpura, dermatitis, psoriasis, pityriasis rosea, blood diseases, etc. It is recommended to consult a doctor in time to clarify the cause.
1. Henochromatosis purpura: related to the body’s allergic reaction to sensitizing substances, can be seen in the lower extremities of the crimson pressure does not fade the color of the hemorrhagic spots.
2. Dermatitis: including contact dermatitis, atopic dermatitis, seborrheic dermatitis, neurodermatitis and insect bite dermatitis. The etiology is complex and may be related to contact allergens, genetics, immunity, environmental factors, skin barrier function abnormalities and other aspects.
3. Psoriasis: commonly known as “psoriasis”, the etiology is unknown, may be the result of genetic, environmental and other factors, can involve the whole body, red spots, red spots, covered with silver-white scales.
4. pityriasis rosea: it is a common inflammatory skin disease, the cause of which is unknown and may be related to viral infection. Patients may have isolated rose-colored, pale reddish plaque-like lesions, often accompanied by varying degrees of itching. The disease is self-limiting, with a duration of several weeks to half a year.
5. Blood diseases: It may be related to blood abnormalities, such as abnormal coagulation function, platelet reduction, or adverse reactions to anticoagulant drugs such as aspirin, warfarin, etc., resulting in subcutaneous hemorrhage, manifested by the emergence of red dots and erythema.
Small red dots on the body, especially if they appear rapidly in a short period of time or are accompanied by other uncomfortable symptoms, you should consult a doctor for examination in a timely manner, to clarify the cause of the disease, and standardize the treatment in accordance with the doctor’s instructions, to avoid delays in the condition.