6 Evidence-Based Ways to Reduce IC Flares and Support Bladder Health

Common dietary irritants may include:

• Coffee and caffeine
• Alcohol, especially wine
• Citrus fruits and juices
• Spicy foods
• Carbonated drinks
• Artificial sweeteners
• Vinegar-containing foods
• Some fermented foods

Because triggers vary from person to person, a food and symptom journal can be helpful. Tracking what you eat, how much you drink, and when symptoms worsen may reveal patterns over time.

Practical tip: Even “healthy” options like kombucha, lemon water, or vinegar-based dressings may trigger symptoms in some people because of their acidity. Rather than eliminating everything at once, consider testing foods slowly and intentionally.

2. Support Daily Bowel Movements and Gut Health

The bladder and bowel are closely connected. When constipation occurs, a backed-up colon may increase pressure on the bladder and contribute to urgency, frequency, pelvic discomfort, or flare-like symptoms.³

Supporting regular bowel movements may help reduce pelvic pressure and improve overall pelvic health.

Helpful strategies may include:

• Eating soluble fiber from foods like oats, chia seeds, flaxseed, and cooked vegetables
• Drinking enough water throughout the day
• Moving your body regularly
• Discussing magnesium supplementation with a healthcare provider, if appropriate
• Addressing underlying digestive issues, such as IBS, if present

Healthy bowel function may also support immune balance and reduce unnecessary strain on the pelvic floor. If constipation is frequent or severe, it may be worth working with a healthcare provider to identify the root cause.

3. Regulate the Nervous System

Stress does not cause IC, but many people with IC notice that symptoms worsen during periods of emotional stress, poor sleep, trauma activation, or physical overwhelm. Research suggests that IC/BPS may involve nervous system sensitization, meaning the nerves involved in pain, urgency, and bladder signaling may become more reactive over time.¹ ⁴

Nervous system regulation is not about simply “being less stressed.” It is about helping the body shift out of fight-or-flight and into a calmer, more regulated state.

Supportive practices may include:

• Diaphragmatic breathing
• Mindfulness meditation
• Gentle yoga
• Body scans
• Somatic tracking
• Humming, gargling, or other gentle vagus nerve-supportive practices
• Cognitive behavioral therapy or trauma-informed therapy, when appropriate

These tools may help reduce symptom sensitivity, improve stress resilience, and support a more regulated pelvic floor and bladder response.

4. Address Pelvic Floor Dysfunction

The bladder does not work in isolation. It is part of a complex pelvic system that includes muscles, nerves, connective tissue, and surrounding organs. In many people with IC/BPS, the pelvic floor muscles can become tense, tender, or poorly coordinated.¹ ⁵

Pelvic floor dysfunction may contribute to symptoms such as:

• Bladder pain
• Burning with or after urination
• Pain with intercourse
• Pelvic heaviness
• Urinary urgency
• Difficulty fully relaxing while urinating
• Symptoms that worsen after sitting for long periods

Pelvic floor physical therapy is recommended in IC/BPS guidelines for patients who have pelvic floor tenderness. Manual therapy, myofascial release, and relaxation-based pelvic floor work may help reduce pain and improve urinary symptoms. Strengthening exercises, such as Kegels, may worsen symptoms in people with tight or overactive pelvic floor muscles and should not be used unless recommended by a qualified clinician.¹

Supportive strategies may include:

• Pelvic floor physical therapy
• Internal or external myofascial release
• Gentle hip and pelvic mobility exercises
• Avoiding prolonged sitting when possible
• Wearing loose, comfortable clothing during flares
• Working with a provider trained in pelvic pain

5. Consider Bladder Training for Urgency and Frequency

For some people with IC/BPS, urinary urgency can become amplified over time as the bladder and nervous system become increasingly sensitive to normal filling sensations. In certain cases, bladder training may help reduce urgency, improve bladder capacity, and decrease the frequency of bathroom trips.¹ ⁷

Bladder training involves gradually increasing the amount of time between urination rather than responding immediately to every urge. The goal is not to ignore severe pain or force the bladder to become overly full, but rather to gently retrain bladder signaling and improve confidence around urgency sensations.

Helpful strategies may include:

• Tracking your current voiding interval for several days
• Gradually extending bathroom visits by 5–15 minutes at a time, as tolerated
• Using diaphragmatic breathing or relaxation techniques when urgency occurs
• Distracting the nervous system with calming activities while waiting for the urge to pass
• Working with a pelvic floor physical therapist or healthcare provider for individualized guidance

Bladder training is often most successful when combined with pelvic floor relaxation, stress management, and trigger reduction. However, it may not be appropriate during active flares, severe pain episodes, or when urgency is caused by an untreated urinary tract infection or other medical condition.

For individuals whose primary symptoms include urgency and frequency rather than severe bladder pain, bladder training may be a useful tool for improving day-to-day bladder control and reducing symptom-related anxiety.

6. Stay Hydrated and Support Bladder Lining Comfort

Dehydration can lead to more concentrated urine, which may feel irritating to a sensitive bladder. For some people with IC/BPS, maintaining steady hydration throughout the day may help reduce bladder discomfort and urgency.¹

Helpful hydration tips include:

• Sip water consistently throughout the day
• Aim for pale yellow urine rather than dark yellow urine
• Avoid extreme fluid restriction
• Avoid overhydration, especially if urine is completely clear all day
• Notice whether certain beverages worsen symptoms

Some people also use soothing herbal teas, such as marshmallow root or corn silk, for bladder comfort. However, herbal products can affect people differently, and not all “natural” remedies are appropriate for sensitive bladders.

Certain nutrients and botanicals, including quercetin and aloe vera, have been studied for their potential role in supporting bladder comfort and inflammation balance, though more high-quality research is needed.⁶ Always speak with a healthcare professional before starting any new supplement, especially if you are pregnant, breastfeeding, taking medications, or managing a chronic condition.

A Few Common Missteps to Watch For

“Natural” Does Not Always Mean Bladder-Safe

Some herbs, essential oils, acidic supplements, or concentrated extracts may irritate sensitive bladders.

Do Not Assume Every Flare Is IC

Urinary tract infections, yeast infections, sexually transmitted infections, kidney stones, and other conditions can mimic or worsen IC symptoms. Testing may be needed, especially if symptoms are new, severe, or different from your usual pattern.

Do Not Over-Restrict Your Diet

The low-acid or bladder-friendly diet is not one-size-fits-all. Personal tracking can help identify your actual triggers without unnecessary food fear or restriction.

Do Not Ignore the Pelvic Floor

If symptoms include burning, pelvic pain, pain with intercourse, or discomfort after sitting, pelvic floor dysfunction may be contributing.

Final Thoughts

Living with IC can be frustrating, painful, and emotionally exhausting. But symptom management often improves when care focuses on the whole person, not just the bladder.

By identifying dietary triggers, supporting bowel health, regulating the nervous system, addressing pelvic floor dysfunction, incorporating bladder training when appropriate, and maintaining healthy hydration habits, many women can reduce flare frequency and feel more confident in their day-to-day care.

Because every person’s triggers and symptoms are unique, tracking patterns and working with knowledgeable healthcare professionals can help create a personalized plan for long-term bladder health.

Here’s to bladder calm and empowered care.

References

Hanno PM, Erickson D, Moldwin R, Faraday MM. Diagnosis and treatment of interstitial cystitis/bladder pain syndrome: AUA guideline amendment. Journal of Urology. 2015;193(5):1545-1553.

American Urological Association. Diagnosis and Treatment of Interstitial Cystitis/Bladder Pain Syndrome. AUA Guideline. Updated 2022.

Shorter B, Lesser M, Moldwin RM, Kushner L. Effect of comestibles on symptoms of interstitial cystitis. Journal of Urology. 2007;178(1):145-152.

Interstitial Cystitis Association. Associated Conditions and IC/BPS. Accessed 2026.

Lai HH, Krieger JN, Pontari MA, et al. Painful bladder filling and painful urgency are distinct characteristics in men and women with urological chronic pelvic pain syndromes. Journal of Urology. 2015.

FitzGerald MP, Anderson RU, Potts J, et al. Randomized multicenter clinical trial of myofascial physical therapy in women with interstitial cystitis/painful bladder syndrome and pelvic floor tenderness. Journal of Urology. 2012;187(6):2113-2118.

Katske F, Shoskes DA, Sender M, Poliakin R, Gagliano K, Rajfer J. Treatment of interstitial cystitis with a quercetin supplement. Techniques in Urology. 2001;7(1):44-46.