Background/Objectives:
Different diagnostic modalities have been used in treatment of patients with anal diseases who have referred to Shiraz colorectal surgery (SCRS) department in the past 7 years. These modalities include anoscopy, manometry, endoanal sonography, MRI and EMG in addition to clinical evaluation. Among these modalities, endoanal sonography looks like the first choice of SCR surgeons, and with their increasing reliance on ultrasound findings, the rate of using other modalities have declined among in recent years.