Rectal examination should not be done –
**Core Concept**
Rectal examination is a critical diagnostic tool in evaluating various gastrointestinal, genitourinary, and neurological conditions. However, there are specific contraindications and precautions to consider to avoid complications.
**Why the Correct Answer is Right**
A rectal examination should not be performed in patients with active rectal or anal fissures, severe hemorrhoids, or recent rectal or anal surgery, as it may exacerbate these conditions and lead to further complications. Performing a rectal examination in these cases can cause significant pain, bleeding, or infection. Additionally, rectal examination may not be feasible or safe in patients with severe rectal or anal trauma.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because, while anal fissures may make the examination uncomfortable, it's not a contraindication for a rectal examination in all cases.
**Option B:** This option is incorrect because, although severe hemorrhoids may be tender, a rectal examination can still be performed with caution and proper technique.
**Option C:** This option is incorrect because, while recent rectal or anal surgery may require some time before a rectal examination can be performed, it's not an absolute contraindication.
**Clinical Pearl / High-Yield Fact**
When performing a rectal examination, it's essential to use a lubricant to reduce discomfort and to perform the examination gently, especially in patients with a history of rectal or anal trauma.
**Correct Answer:** C.