Why Your FIC Cases Keep Coming Back: Practical Strategies to Reduce Recurrence

One of the most frustrating scenarios in feline practice is the cat that returns every few months with another episode of feline idiopathic cystitis (FIC). While acute episodes often respond to symptomatic treatment, recurrence remains common because FIC is a chronic, multifactorial disorder rather than simply a disease of the urinary bladder¹. Recent evidence suggests that preventing recurrence requires a shift in focus—from treating the bladder to managing the cat as a whole². 

Recurrence Is a Feature of the Disease 

FIC develops through complex interactions between the bladder, neuroendocrine system and environmental stressors, making recurrence an expected part of the disease in many patients¹. The 2025 systematic review evaluating commonly recommended management strategies found that relatively few interventions are supported by robust clinical evidence, highlighting the importance of prioritising treatments that have demonstrated clinical benefit². 

Practice pearl: Set realistic expectations during the first consultation. Explaining that the goal is reducing the frequency and severity of future episodes—not necessarily eliminating recurrence—helps improve long-term owner compliance². 

Prioritise Multimodal Environmental Modification 

Among all management strategies reviewed, multimodal environmental modification (MEMO) has the strongest evidence for reducing recurrent episodes². Rather than focusing on a single environmental change, MEMO addresses multiple sources of stress simultaneously. 

Effective strategies include providing sufficient litter trays, ensuring easy access to food and water, increasing opportunities for play and predatory behaviour, creating safe resting areas, minimising conflict in multi-cat households and maintaining predictable daily routines¹˒². 

Practice pearl: Instead of asking owners whether the cat is "stressed," ask targeted questions about household changes, new pets, visitor frequency, feeding competition and litter tray availability. These conversations often reveal modifiable triggers that would otherwise be overlooked¹. 

Water Intake Matters More Than Many Medications 

Increasing dietary moisture remains one of the most consistently supported interventions for recurrent FIC². Therapeutic urinary diets, particularly those formulated to increase water intake and produce more dilute urine, have demonstrated beneficial effects on recurrence in controlled studies reviewed by Macleod and colleagues². 

Practice pearl: If a cat refuses canned food, discuss practical alternatives such as water fountains, multiple water stations, flavouring water appropriately or gradually transitioning to moisture-rich diets rather than simply advising owners to "encourage drinking"¹˒². 

Be Cautious with Long-Term Drug Therapy 

Many medications—including anti-inflammatory drugs, glycosaminoglycans, prazosin and intravesical therapies—have been investigated for recurrent FIC, but the current evidence remains limited or inconsistent². The systematic review concluded that, for many commonly prescribed treatments, there is insufficient high-quality evidence to support routine long-term use². 

Practice pearl: Before adding another medication after recurrence, ask whether environmental management and dietary recommendations have been fully implemented and maintained. Optimising these measures may provide greater benefit than escalating pharmacological therapy². 

Follow-Up Is Part of the Treatment 

Recurrence prevention is rarely achieved during a single consultation. Follow-up visits provide opportunities to identify barriers to owner compliance, reinforce environmental recommendations and adjust management plans as household circumstances change¹. 

Clinical Take-Home Message 

Recurrent FIC should not automatically prompt additional medication. Current evidence supports a multimodal strategy centred on environmental modification and increased water intake as the cornerstone of long-term management¹˒². For practicing veterinarians, the greatest opportunity to reduce recurrence may lie not in prescribing another drug, but in spending a few extra minutes understanding how the cat lives at home and helping owners implement practical, sustainable environmental changes². 

References (Vancouver) 

1. He C, Fan K, Hao Z, Tang N, Li G, Wang S. Prevalence, Risk Factors, Pathophysiology, Potential Biomarkers and Management of Feline Idiopathic Cystitis: An Update Review. Front Vet Sci. 2022;9:900847. doi:10.3389/fvets.2022.900847. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC9257190/ 

2. Macleod B, Laven LJ, Laven RA, Hill KE. Understanding the current evidence base for the commonly recommended management strategies for recurrent feline idiopathic cystitis: a systematic review. N Z Vet J. 2025;73(4):233-245. Available from: https://mro.massey.ac.nz/items/82482980-61c2-4ae2-b2df-f0041e01dbd0