A lot of small red moles on the body without pain or itching means that the body may have thrombocytopenic purpura, allergic purpura, spider nevus and other lesions. 1. Thrombocytopenic purpura: skin bleeding due to genetic or autoimmune abnormalities can lead to the formation of petechiae and ecchymoses on the skin and mucous membranes, and the appearance of small red naevi on the body without pain or itching. 2. Anaphylactic purpura: patients are usually the first to develop a rash, similar in appearance to a red bleeding spot, which can be manifested as a small, painless, itchy red mole on the body. 3. Spider nevus: If you suffer from cirrhosis and other liver dysfunction diseases, it can lead to a decrease in the inactivation of estrogen, and a higher level of estrogen in the blood, which can cause capillary dilation and the appearance of a lot of painless and itchy small red naevi. It is recommended that those who have many small red moles and are painless and itchy continue to be unrelieved should consult a doctor in time to clarify the cause of the disease and standardize the treatment under the guidance of the doctor.