Millet-like bumps with a red line around the outside of the anus may be related to warts, perianal eczema, folliculitis, and so on. The actual fact is that they are not the same as the other ones, and they are not the same as the other ones. 1. Condyloma acuminatum: mainly transmitted by sexual contact, occurring in the anus, genitals or genital periphery and other parts of the body. The common damages are papules, plaques, papillae or cauliflower-like superfluous organisms, scattered or fusion. The lesions begin as single or multiple scattered reddish papules with soft texture and sharp tips. 2. Perianal eczema: small papules, papules, small blisters, etc. can appear in the perianal area, which can be scattered or aggregated, and can be symmetrically distributed around the anus. Erythema, erythema, mossy changes and flaking can also occur. 3. Folliculitis: the common manifestation is the formation of red papules around the hair follicles, accompanied by red, swollen, hot, painful inflammatory reaction. The papules can be generally scattered distribution, can also be aggregated, later can also develop into pustules. There may be other reasons for the millet-like pimples with a red line around the outside of the anus, and it is recommended that the patient go to the hospital in time to clarify the cause of the disease and treat the cause.