The common clinical causes of small red spots on the stomach are eczema, cholinergic urticaria and folliculitis. Eczema: this refers to a chronic, inflammatory, itchy skin disease, the cause of which is unknown, often associated with physical fitness, infection, emotional abnormalities and other factors, the clinical manifestations of which are red spots, papules, blisters, oozing, etc., with obvious itching in the affected area. Cholinergic urticaria: this disease refers to a kind of limited edema of the skin and mucous membranes, usually associated with exercise, alcohol, stress, spicy food and passive fever and other factors, clinical manifestations for the affected areas of the appearance of small, scattered air masses, often accompanied by itching, can subside on their own. 3. Folliculitis: this condition refers to a kind of inflammatory skin disease mainly involving hair follicles, clinical manifestations for the hair follicles as the center of the red papules, accompanied by itching, pain and other symptoms, which is usually associated with hair follicles are infected. The causes of small red spots on the stomach are quite varied, and it is recommended to consult a doctor for a clear diagnosis and further targeted treatment.