For most people, a cystoscopy is uncomfortable but not severely painful. In a study of over 1,300 procedures, 86% of patients rated their pain as either zero or mild on a 0-to-10 scale. The experience is closer to a strong urge to urinate than to sharp pain, though certain moments during the procedure are more uncomfortable than others.
What the Pain Actually Feels Like
The most uncomfortable moment is when the scope passes through the external sphincter, the muscular ring that controls urine flow. This creates a brief burning or stinging sensation along with strong pressure. Many people describe it as similar to the start of urination but more intense and involuntary. That moment lasts only a few seconds.
Once the scope is inside the bladder, your doctor fills it with sterile water to get a clear view of the bladder wall. This creates a sensation of fullness and urgency, like you desperately need to urinate. It’s not sharp pain, but it can feel deeply uncomfortable, especially if the bladder is filled more than usual. When the scope is removed, most people feel a brief sting followed by immediate relief.
How Pain Differs by Scope Type
There are two types of cystoscopes: flexible and rigid. The type used makes a real difference in how much discomfort you’ll feel.
Flexible cystoscopy is the standard for diagnostic procedures, especially in men. It bends with the natural curves of the urethra, which significantly reduces friction and pressure. In one study comparing the two, about half of patients who had a flexible scope reported any pain at all, compared to nearly 72% of those who had a rigid scope. The median pain score for flexible cystoscopy in women was essentially zero on a 100-point scale, versus 15 for rigid cystoscopy.
Rigid cystoscopes are typically reserved for situations where the doctor needs to take a biopsy, remove a growth, or perform another intervention that requires stiffer instruments. If your procedure is purely diagnostic, you’ll almost certainly get the flexible version.
Men vs. Women: The Anatomy Factor
Men consistently report more discomfort than women during cystoscopy. The reason is straightforward: the male urethra is roughly 18 to 20 centimeters long and curves through the prostate, while the female urethra is only about 4 centimeters and runs in a straight line.
In an analysis of 1,320 procedures, men averaged a pain score of 2.6 out of 10 compared to 2.4 for women. That gap widened with rigid scopes, where men averaged 3.4 versus 2.5 for women. With flexible scopes, men dropped to 2.5 and women to just 1.1. For women especially, a flexible cystoscopy is often described as barely noticeable.
How Numbing Gel Works
Before the scope goes in, your doctor will insert a lidocaine gel into the urethra. This is the local anesthetic used for the vast majority of outpatient cystoscopies, and how long it sits in the urethra before the procedure starts matters more than most people realize.
A study of 400 men undergoing rigid cystoscopy tested different waiting times after the gel was applied. Patients who waited only 5 minutes before the scope was inserted reported average pain scores near 5 out of 10. Those who waited 15 minutes reported scores around 1.5. Waiting 20 minutes offered no additional benefit over 15. If your doctor applies the gel and seems to be taking their time before starting, that delay is working in your favor.
What to Expect Afterward
The procedure itself typically takes 5 to 15 minutes for a diagnostic exam. Afterward, you can expect a burning sensation when you urinate and a need to go more frequently than usual. These side effects are normal and generally resolve within a day or two. Some people notice a small amount of blood in their urine for the first couple of voids, which is also typical.
Lower belly discomfort is common in the hours following the procedure but tends to be mild. Drinking extra water helps flush the bladder and can reduce the stinging during urination. If burning or pain while urinating persists beyond two days, that warrants a call to your doctor.
Risk of Infection After the Procedure
The most common complication is a urinary tract infection. In a randomized trial tracking patients for a week after flexible cystoscopy, about 5% developed a symptomatic UTI. The rate was slightly lower (around 4%) in patients who received a preventive antibiotic and slightly higher (about 6%) in those who didn’t, though the difference was small. Signs to watch for include worsening pain, fever, cloudy or foul-smelling urine, or burning that gets worse instead of better after the first two days.
What Can Reduce Your Discomfort
Several factors are within your control or worth discussing with your doctor beforehand. Patient positioning makes a measurable difference: one trial found that lying flat on your back produced significantly lower pain scores than being placed in stirrups (a median score of 1 versus 2). You can ask your urologist which position they plan to use.
Relaxing your pelvic floor muscles during insertion helps considerably. The external sphincter is under voluntary control, and tensing it against the scope is one of the main sources of pain. Slow, steady breathing through the moment of insertion, as if you were beginning to urinate, allows the sphincter to relax and the scope to pass through more easily. Some clinics will coach you through this, but if they don’t, simply focusing on exhaling slowly and releasing tension in your lower body can make a noticeable difference.
If you’ve had a previous cystoscopy that was particularly painful, or if you have significant anxiety about the procedure, sedation is an option. Most diagnostic cystoscopies don’t require it, but over 97% of patients in one large study said they’d choose local anesthesia again for future procedures, which gives a good sense of how tolerable it is for the vast majority of people.