Red round marks on the skin may be caused by pressure purpura, pityriasis rosea, urticaria and ringworm.
1. Pressure purpura: usually due to pressure or gravitational factors and other reasons, resulting in increased intravascular pressure, which may lead to the appearance of red round marks on the skin.
2. pityriasis rosea: it is an acute inflammatory skin disease, occurring in the proximal limbs and trunk area, which can be manifested as red round marks on the skin, and may also be accompanied by poor appetite, fatigue and weakness.
3. Urticaria: usually caused by hot and cold stimuli, allergic factors, etc. When urticaria is in acute attack, it may lead to the appearance of red round marks on the local skin, and may also be accompanied by itching, wind masses and other symptoms.
4. ringworm: the early stage of the disease can lead to local skin red papules, papules, along with the gradual progress of the disease, the formation of red scaly patches, the edge of the continuous outward expansion, which may result in the appearance of red round marks on the skin.
There may be other reasons for the red round marks on the skin, it is recommended to consult a doctor to clarify the cause and follow the doctor’s instructions for targeted treatment.