Which of the following is an example of visceral pain?

Visceral pain arises from the internal organs, also known as visceras, and is typically characterized by a deep, aching quality that may be difficult to localize. In this context, irritable bowel syndrome (IBS) is an example of visceral pain because it involves discomfort originating from the intestines, which are part of the gastrointestinal tract. This type of pain often presents with cramping, bloating, and other gastrointestinal symptoms, making it distinct from other kinds of pain.

The other options refer to different types of pain that do not originate from internal organs. Fibromyalgia is a chronic pain condition characterized primarily by widespread musculoskeletal pain, fatigue, and tenderness in localized areas, but it does not originate from visceral sources. Post-herpetic neuralgia is a nerve pain condition that can occur after a shingles infection, characterized by sharp, burning sensations, which is classified as neuropathic pain rather than visceral. Diabetic neuropathy involves damage to the peripheral nerves caused by diabetes, leading to pain, tingling, or numbness, and is likewise not considered visceral pain.