Paraanal abscess
Introduction
Introduction Anal abscess: also known as perianal abscess, intestinal bacteria caused by anal crypt (the sinus fossa at the anorectal junction) inflammatory infection, along the lymphatic invasion of the rectal anal canal tissue to form an abscess.
Cause
Cause
Causes:
An acute suppurative infection occurs in the anal canal, the soft tissue around or around the rectum, and an abscess is formed. Common pathogens include Escherichia coli, Staphylococcus aureus, Streptococcus and Pseudomonas aeruginosa, occasionally anaerobic bacteria and Mycobacterium tuberculosis, often mixed infections of various bacteria. Subcutaneous abscess around the anus is most common, mostly caused by anal gland infection through the lower part of the external sphincter skin outward or directly outward.
Examine
an examination
Related inspection
Anal finger examination anal inspection
1, laboratory tests: blood routine, urine routine, routine and so on.
2, local examination: visual inspection, anal finger examination.
Diagnosis
Differential diagnosis
Should be differentiated from perianal cysts:
The perianal cyst is mostly caused by the anal gland infection spreading outward through the lower part of the external sphincter, often located in the lower part of the anus or lateral skin, generally not large. The main symptoms are continuous perianal pain in the perianal area, inconvenient movement, restlessness, and no obvious systemic infectious symptoms. The lesion is obviously red and swollen, with induration and tenderness. The formation of abscess can have a sense of fluctuation, and pus is taken out during puncture.
