If red dots appear on the stomach, the first thing to look at is whether they are localized or circumscribed, whether the red dots protrude from the surface of the skin or parallel to the skin without protruding from the surface, and whether they are accompanied by itching, blisters, and local breakouts. There are many clinical factors that lead to red dots on the stomach, skin diseases, local folliculitis, rheumatic immune system diseases, blood system coagulation dysfunction, and reduced platelets, all of which can have localized red dots. To analyze the actual situation of the patient, it is best to go to the dermatology department and do the relevant examination under the guidance of the doctor. Some diseases can be diagnosed with the experience of a dermatologist, while others may require relevant tests to confirm the diagnosis. For example, if rheumatic immune system diseases are suspected, rheumatic immune system related tests may be done; if blood problems are suspected, routine blood tests and five blood clotting tests may be done for differential diagnosis. After the diagnosis is confirmed, symptomatic treatment can be given.