Rectal Pain or Pressure When Sitting: Could It Be Nerve-Related?
Rectal pain, or a constant feeling of pressure in the rectum, is easy to mistake for a bowel problem. Many people have had examinations that found nothing. This page explains which causes doctors usually rule out first, and when a nerve problem, including the pudendal nerve, may be part of the picture.
See a doctor promptly if rectal pain comes with rectal bleeding, unexplained weight loss, a change in your bowel habits, or a painful swelling near the anus with fever. Go to an emergency department now if it comes with numbness around the genitals, anus or buttocks, not being able to pass urine, loss of bladder or bowel control, or new weakness in both legs. These can be signs of cauda equina syndrome, which needs urgent treatment.
What rectal pain or pressure can be
Doctors first look for physical causes near the anus and rectum. The most common are:
- Hemorrhoids, which can cause pain if a clot forms in the vein.
- An anal fissure, a small tear that typically causes sharp pain, often after a bowel movement.
- An abscess near the anus, which causes a painful, red, firm swelling.
- Proctalgia fugax, sudden sharp rectal pain that lasts from seconds to a maximum of about 30 minutes.
- Levator ani syndrome, chronic or recurring rectal aching or pressure lasting 30 minutes or more, with tenderness when the muscle is pressed. It can be triggered by sitting, and in most cases no clear cause is found.
- Pelvic floor dysfunction, where the pelvic floor muscles do not relax or coordinate well, often with constipation or a feeling of incomplete emptying.
Benign and serious conditions, including cancer, can look alike, so a physical examination comes first.
When the pudendal nerve may be involved
The pudendal nerve supplies the skin and muscles around the anus and the genitals. Doctors assess it using the Nantes criteria. Essential criteria include pain in the pudendal territory, from the anus to the penis or clitoris, pain that is mainly felt when sitting, and pain that does not wake you at night. A feeling of a foreign body in the rectum is one of the supporting (complementary) signs, together with burning, shooting or stabbing pain, numbness, worsening during the day and pain triggered by bowel movements.
Rectal pressure alone does not make the diagnosis. The pattern does, and the diagnosis needs a clinical assessment. Pain that comes only in sudden short attacks, or only in the tailbone or buttock area, points away from pudendal neuralgia. Pain that regularly wakes you at night is also less typical.
Why levator ani syndrome and pudendal neuralgia are easy to confuse
Both can cause a dull ache or pressure in the rectum that is triggered by sitting. That is why the pattern, the examination and the response to a diagnostic pudendal nerve block matter. If a bowel or pelvic floor cause has been treated without enough improvement, it is reasonable to ask whether a nerve is involved.
What to do next
A specialist assessment can help sort out whether the rectum, the pelvic floor muscles or a nerve is the main driver. It helps to bring reports from any colonoscopy, MRI or examination, and a short note on when the symptoms are worse (sitting, after bowel movements, during the day, at night).
Common questions
Can pudendal neuralgia cause rectal pain?
Yes, it can. The pudendal nerve supplies the area around the anus, and a sensation of a foreign body or pressure in the rectum is a recognized supporting sign. It is usually accompanied by pain that is worse when sitting. Physical causes in the rectum are normally ruled out first.
Is it hemorrhoids or a nerve problem?
Hemorrhoids usually cause bleeding, swelling or pain around bowel movements and can be seen or felt on examination. If an examination shows nothing and the pain or pressure continues, especially when sitting, other causes need to be considered.
What is the difference between levator ani syndrome and pudendal neuralgia?
Levator ani syndrome is chronic or recurring rectal aching or pressure linked to the pelvic floor muscle, and in most cases no clear cause is found. Pudendal neuralgia is nerve pain in the territory from the anus to the genitals, mainly when sitting. The symptoms overlap, so a specialist assessment helps tell them apart.
Does rectal pain that wakes me at night rule out pudendal neuralgia?
Not on its own. Pain that does not wake you at night is one of the essential criteria, so night pain makes doctors look more closely for other causes, but a diagnosis rests on the whole pattern and an examination.
When should I see a doctor urgently?
See a doctor promptly if you have rectal bleeding, unexplained weight loss, a change in bowel habits, or a painful swelling near the anus with fever. Go to an emergency department if pain comes with numbness around the genitals, anus or buttocks, inability to pass urine, loss of bladder or bowel control, or new weakness in both legs.
Related reading
- Pudendal Neuralgia Symptoms →
- How to Sit With Pudendal Neuralgia →
- Penile Nerve Pain in Men: Pudendal Neuralgia or Prostatitis? →
- Urinary Urgency, Normal Tests: Nerve Pain Causes →
- Perineal Pain: Causes, Red Flags & Nerve Involvement →
- Can an MRI Show Pudendal Neuralgia? What Scans Reveal →
- Pudendal Nerve Decompression Surgery →
Speak with a pudendal nerve specialist.
Dr Renaud Bollens leads a specialist practice dedicated to chronic pelvic pain, with centers in Dubai and Belgium.