Urinary Retention After Surgery

Difficulty urinating after hemorrhoid surgery is common enough — occurring in roughly 15–37% of patients across published studies, depending on the specific procedure and anesthesia used — that it deserves specific, upfront explanation rather than being an alarming surprise if it happens to you.

Key takeaways

Urinary retention after hemorrhoidectomy is common, generally occurring within the first 24 hours after surgery.
Contributing factors include pain, the effects of spinal anesthesia specifically, and the anatomical proximity of the surgical site to nerves involved in bladder function.
It’s generally managed with temporary measures and resolves as post-operative pain and swelling improve — it doesn’t typically indicate a lasting problem.

Why this happens

A few factors combine to make this a common early complication:

Pain itself can inhibit normal bladder function
Spinal anesthesia, commonly used for this surgery, has a specifically documented association with higher urinary retention rates compared to general anesthesia in some studies
Anatomical proximity — nerves involved in bladder function run near the surgical area, and surgery and swelling in this region can temporarily affect their normal signaling

How common this actually is

Published studies report rates in the range of roughly 15–37% for hemorrhoidectomy specifically — a notably higher rate than most of the other complications covered in this recovery section, and common enough that many surgical teams specifically plan around this possibility (for example, being cautious about excessive IV fluids during surgery, given a documented link between fluid volume and retention risk).

How it’s typically managed

Temporary catheterization, if needed, to relieve bladder pressure until normal function returns
Adequate pain control, since pain itself contributes to the problem
Fluid management — your surgical team may specifically manage how much fluid you receive around the time of surgery, given the documented link to retention risk
Most cases resolve within the first day or so as post-operative pain and swelling begin to improve

What to watch for and report

Inability to urinate at all, or significant bladder pain/fullness, particularly beyond the first day
Pain or burning with urination once you are able to go, which could suggest a urinary tract infection rather than simple retention

A reassuring note

This is a well-recognized, generally temporary complication rather than a sign of a lasting problem — most people who experience this have normal bladder function restored within a short time as the acute post-operative period passes. It’s mentioned here specifically so it doesn’t come as an alarming surprise if it happens, given how common it genuinely is.

When to contact your surgical team

Complete inability to urinate, particularly if accompanied by significant bladder pain or fullness
Any of the general warning signs covered in When to call your surgeon

Want the broader picture of what’s typical during early recovery? See Hemorrhoidectomy recovery: day by day.

This page is for general education, reflecting published rates across different studies and techniques.