Two-year-old baby perianal red bumps, consider and poor hygiene, perianal eczema, inflammatory polyps and other factors related. 1. poor hygiene: usually do not pay attention to hygiene, feces and urine stimulation, may lead to perianal red bumps. 2. Perianal eczema: perianal eczema is related to the role of a variety of internal and external factors, can occur at any age, a few will involve the perineum, mainly manifested as localized redness, swelling, oozing, vesicles, itching and so on. 3. Inflammatory polyps: round or oval swellings around the anus are considered to be related to perianal inflammatory polyps, which are associated with long-term constipation and inflammation stimulation, resulting in localized polypoid changes. Red bumps around the anus, it is recommended to pay attention to local care, to the local hospital dermatology. For the cause of the disease, symptomatic, give the appropriate drug treatment.