There are several possibilities for red dots on the body after chemotherapy: First, drug rash, because the drug rash caused by allergy to chemotherapy drugs, the rash can be manifested as red dots, the red dots can fade with hand pressure, can be raised on the surface of the skin, accompanied by obvious itching, can be distributed throughout the body but mostly seen in the trunk; Second, subcutaneous bleeding caused by a drop in platelet count after chemotherapy, because chemotherapy drugs have the side effect of inhibiting bone marrow hematopoietic function, so The needle point-like subcutaneous bleeding is called petechiae, which cannot fade when pressed by hand and does not protrude from the skin surface, and is more common in the extremities without obvious itching; third, skin damage, some chemotherapy drugs may damage the skin, resulting in skin vascular leakage and a rash of red spots and erythema, which has no obvious itching and can fade when pressed by hand. can fade.