A transanal ultrasound or sonogram is an ultrasound of the anus that measures the strength and structure of the internal and external anal sphincters. Individuals who are experiencing fecal incontinence, leakage of stool, or have experienced an obstetric-related injury may require a transanal ultrasound. The test is performed in the office by Dr. Shakiba himself and takes about 15-20 minutes. It is a painless procedure involving a small probe that is inserted into the anus and the patient may resume normal activity immediately afterwards. The test is also followed by an office visit with Dr. Shakiba to discuss the results, allowing immediate feedback to his patients. The testing may help dictate whether or not the patient requires reconstructive surgery based on its findings.