Babies with a lot of small particles around the anus can consider anal eczema, perianal dermatitis or folliculitis and other causes. 1. Anal eczema: babies often appear intense itching, the skin around the anus will appear erythema, papules or blisters, can be due to excessive scratching, hot water scalding and other reasons lead to redness, oozing or vesiculation, long-term chronicity of the presentation of the skin mossy changes. 2. Perianal dermatitis: If the diaper is not changed in time, resulting in diaper dermatitis, the baby’s perianal skin is stimulated, the skin has redness or macular papules, pimples and other lesions, the edge is clearer. 3. Folliculitis: can occur in the buttocks, vulva and other parts of the initial red follicular papules, can gradually form pustules. Infants with more small particles around the anus are advised to seek timely medical attention to clarify the cause of the disease, and then follow the doctor’s instructions for treatment.