What is checked during a digital rectal exam?

During a digital rectal exam, rectal tone is assessed as it provides valuable information about the function of the anal sphincter muscles. This examination can help identify abnormalities such as laxity or hypertonicity, which may suggest underlying issues like nerve damage or bowel dysfunction. Assessing rectal tone is an essential part of many evaluations, particularly when patients present with gastrointestinal symptoms, incontinence, or changes in bowel habits.

The other options do pertain to different examinations or assessments. For instance, checking for inguinal hernia is a separate physical examination method focusing on the groin area. The guaiac test is a specific test for detecting hidden blood in the stool and is not part of a physical exam but rather a laboratory test. The cremasteric reflex involves the contraction of the cremaster muscle in response to stimulation and is not related to the digital rectal examination. Thus, the focus of the digital rectal exam specifically on assessing rectal tone underscores its importance in clinical evaluations.