What you’re describing—sudden, sharp, stabbing rectal/anal pain lasting seconds to a few minutes and then completely disappearing—fits very well with:
Proctalgia fugax
This condition is generally benign (not dangerous), but the pain can feel quite intense and alarming.
What causes it?
The exact cause isn’t always clear, but it is mainly linked to temporary muscle spasms in the pelvic floor or anal sphincter. Possible contributors include:
- Sudden spasm of pelvic floor muscles
- Irritation or hypersensitivity of local nerves
- Stress or anxiety (can increase muscle tension)
- Constipation or straining during bowel movements
- Gas or bowel distension
- Sitting for long periods
Common triggers
Episodes often occur randomly, but people sometimes notice links with:
- Emotional stress or mental tension
- Night-time or early morning sleep phases
- Constipation or hard stools
- Prolonged sitting
- No clear trigger at all (very common)
Typical pattern (matches your case)
- Sudden onset
- Sharp/stabbing pain
- Lasts seconds to a few minutes
- Goes away completely on its own
- No lingering discomfort afterward
When it may NOT be proctalgia fugax
Other conditions are more likely if you have:
- Pain lasting hours instead of minutes
- Bleeding during bowel movements
- Pain while passing stool
- Swelling, lumps, or persistent discomfort
What can help during an episode
- Deep breathing and relaxation (reduces muscle spasm)
- Warm sitz bath
- Gentle walking or changing position
- Avoid straining during bowel movements
- Maintain good hydration and fiber intake
When to see a doctor
Even though it is usually harmless, get checked if:
- Episodes become frequent or severe
- Pain duration starts increasing
- You notice bleeding or mucus
- You develop changes in bowel habits
Conclusion
Your symptoms strongly suggest proctalgia fugax, a short-lived anal muscle spasm condition that is typically harmless, but if it starts happening more often or changes in pattern, a medical evaluation is recommended to rule out other causes.