What happened to the long bag near the anus?

Long package near the anus, consider 4 points more reasons: the first point, lipoma, often around the anus appear clear boundary, soft texture nodules, can be promoted, color Doppler examination can make a clear diagnosis.

The second point, anal leakage fistula mouth, in the local formation of pustules, is painful mass, fistula imaging examination can be made a clear diagnosis. The third point, thrombotic external hemorrhoids, often around the anus appear mass, can touch thrombus, combined with infection often severe pain, need to further thrombotic external hemorrhoids exfoliation.

The fourth point, sebaceous cyst combined with infection, often around the anus long package.