Clinical classification

n

Clinical features

Perianal subcutaneous abscess

5

Palpation with lumps and mild pain

Abscess of ischiorectal space

12 (8 cases complicated with anal fistula)

Anal flatulence discomfort

Abscess of posterior anal space

6

Redness and swelling of skin

Abscess of anal sphincter space

5 (3 cases complicated with anal fistula)

Pain and discomfort, partial late burst

Submucosal abscess of rectum

2

Anal swelling pain, finger tenderness

High intermuscular abscess

2

Hidden onset, tenderness of the mass

Complex abscess

3 (3 cases complicated with anal fistula)

Swollen, hot and painful, touching lumps

Misdiagnosis

(Posterior rectal teratoma)

1

Touching the block