Short answer · Medically reviewed summary · Last updated: 2026-05-08
Anterior Cutaneous Nerve Entrapment Syndrome (ACNES) is a frequently overlooked cause of chronic abdominal wall pain characterized by a localized, sharp sensation often triggered by muscle contraction. If you experience a persistent, pinpoint area of tenderness on your abdomen that worsens when you tense your abdominal muscles, you should consult a specialist to investigate Anterior Cutaneous Nerve Entrapment Syndrome (ACNES). What are the primary symptoms of ACNES? The hallmark of Anterior Cutaneous Nerve Entrapment Syndrome (ACNES) is localized pain originating from the abdominal wall rather than internal organs.
2 people with Anterior Cutaneous Nerve Entrapment Syndrome (ACNES) have shared their first-person experience on this question at DiseaseMaps.
How do I know if I have Anterior Cutaneous Nerve Entrapment Syndrome (ACNES)?
Could you have Anterior Cutaneous Nerve Entrapment Syndrome (ACNES)? Early signs that prompted real patients to seek diagnosis, plus medically reviewed guidance.
Anterior Cutaneous Nerve Entrapment Syndrome (ACNES) is a frequently overlooked cause of chronic abdominal wall pain characterized by a localized, sharp sensation often triggered by muscle contraction. If you experience a persistent, pinpoint area of tenderness on your abdomen that worsens when you tense your abdominal muscles, you should consult a specialist to investigate Anterior Cutaneous Nerve Entrapment Syndrome (ACNES).
What are the primary symptoms of ACNES?
The hallmark of Anterior Cutaneous Nerve Entrapment Syndrome (ACNES) is localized pain originating from the abdominal wall rather than internal organs. Patients often describe a burning or stabbing sensation. A key clinical indicator is the "Carnett’s sign," where pain intensity increases when the patient tenses their abdominal wall muscles (such as during a sit-up), while the pain remains stable or decreases when muscles are relaxed. Unlike gastrointestinal issues, Anterior Cutaneous Nerve Entrapment Syndrome (ACNES) typically does not cause diarrhea, fever, or vomiting.
How can I self-assess for ACNES?
To help determine if your symptoms align with Anterior Cutaneous Nerve Entrapment Syndrome (ACNES), observe the following patterns:
- Point tenderness: Can you identify the exact spot of pain with one finger?
- Muscle tension: Does the pain worsen when you tighten your stomach muscles?
- Absence of visceral symptoms: Do you lack digestive issues like bloating or changes in bowel habits?
- Sensory changes: Is there a small area of altered sensation (numbness or hypersensitivity) around the painful site?
When should I see a doctor and what tests should I request?
If you suspect Anterior Cutaneous Nerve Entrapment Syndrome (ACNES), schedule an appointment with a primary care physician or a general surgeon. Explicitly ask them to perform the Carnett’s test. While there is no specific blood test for the condition, diagnostic nerve blocks—where a local anesthetic is injected into the painful site—serve as both a diagnostic tool and a potential treatment for Anterior Cutaneous Nerve Entrapment Syndrome (ACNES). If your doctor is unfamiliar with the condition, bring printed clinical literature to your appointment to facilitate a productive discussion.
Next steps
- Consult with a general surgeon or a pain management specialist who has experience with abdominal wall pain.
- Join the DiseaseMaps.org community to connect with the 36 members who have shared their experiences with this condition.
- Keep a pain diary to track which movements or positions trigger your symptoms.
Medical disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of a qualified healthcare provider with any questions regarding a medical condition.
References
- NIH Genetic and Rare Diseases Information Center (GARD): Anterior Cutaneous Nerve Entrapment Syndrome.
- Orphanet: Rare diseases database and clinical resource portal.
- PubMed: Systematic reviews on the diagnostic accuracy of Carnett’s sign in abdominal wall pain.
* the pain can be pointed out with one finger. Mostly on the right side of your belly button. (Some times also on the left side on a symmetric height)
* you have really heavy pains in your abdominal wall
* your belly/stomach sometimes bloats (that also makes you nauseous and don't want to eat)
* the pain is always there
* the pain is neuropathic pain (because a nerve is blocked in the abdominal wall)
* the pain can feel like a stabbing, irritating pain
Unilateral locoregional pain at the abdominal wall lasting for at least 1 month
The presence of a unilateral tender spot at the abdominal wall (a trigger point of <2 cm2 fingertip area of maximal tenderness, localized at the lateral border of the rectus abdominis)
A positive Carnett’s test
A positive skin pinch test and/or altered skin perception to light touch and/or cold at the area of the most intense pain
Normal laboratory findings with no indication of inflammation or infection, and in the absence of any surgical cause of pain
Negative imaging of the abdominal wall
Temporary positive relief in pain response of at least by 50% after injecting a local anesthetic (usually lidocaine) at the diagnostic trigger point.
Posted Aug 11, 2018 by Hiltje 3770
Posted Jun 22, 2020 by Samantha 1350
