Cervical cystitis: treatment regimens and prevention of exacerbations

International guidelines on urological infections and lower urinary tract symptoms do not use the diagnosis of "cervical cystitis." They distinguish acute uncomplicated cystitis, recurrent infection in women, urethral pain syndrome according to the standards of the International Continence Society, and bladder pain syndrome. In Russian-language practice, "cervical cystitis" usually refers to inflammatory changes in the trigone and neck of the bladder, described as pseudomembranous trigonitis. [1]

Trigonitis is a condition characterized by areas of nonkeratinizing squamous cell metaplasia in the trigone region of the bladder. It is common in women and can be accompanied by frequent urination, burning, and lower abdominal discomfort. However, trigonitis itself does not always indicate an active bacterial infection, and its clinical significance depends on accompanying complaints and test results. [2]

Historically, the hormonal sensitivity of this area has been debated: in some women, the epithelium of the triangle exhibits expression of sex steroid receptors, which is associated with the influence of estrogens and perimenopause. However, modern data also highlight the role of recurrent infections and microbial niches in the development of inflammation and symptoms. This explains why treatment strategies must be individualized and multi-layered. [3]

Table 1. How the terms are related

A term used in everyday life	Modern description	Where to look in manuals
Cervical cystitis	A symptom complex involving changes in the area of the triangle and neck of the bladder, often referred to as trigonitis	Guidelines for lower urinary tract symptoms in women and urinary tract infections
Acute cystitis	Acute episode of uncomplicated lower urinary tract infection	Urologic Infection Guidelines
Recurrent infection	Recurrent laboratory-confirmed episodes of cystitis	Guidelines for recurrent infections in women
Urethral pain syndrome	Recurrent urethral pain without proven infection or other obvious cause	International Continence Society Terminology Documents
Bladder pain syndrome	Chronic pelvic pain associated with the bladder, with urologic symptoms and exclusion of other causes	Bladder Pain Syndrome Guidelines

How it manifests itself and what is alarming

Typical complaints include frequent urination, burning, a feeling of incomplete urination, and pain in the suprapubic region. These symptoms are nonspecific and occur in acute cystitis, relapses, urethral pain syndrome, and overactive bladder. Therefore, diagnosing "cervical cystitis" without a basic diagnosis is incorrect. [4]

Red flags include macrohematuria, fever, lower back pain, nausea and vomiting, severe weakness, urinary retention, and atypical vaginal discharge. These signs require further evaluation to rule out complicated infection, urolithiasis, neoplasms, or gynecological pathology. [5]

Postmenopausal women often experience vaginal dryness and discomfort, which reflects estrogen deficiency and affects the risk of recurrent infection. Considering hormonal status is important, as it changes the choice of prevention. [6]

Table 2. Symptoms and red flags

Group	Examples	Actions
Typical symptoms	Burning, increased frequency, suprapubic pain	Basic diagnostics, empirical therapy when indicated
Red Flags	Macrohematuria, fever, lower back pain, urinary retention	Urgent assessment, advanced diagnostics
Factors in postmenopausal women	Dryness, dyspareunia, frequent relapses	Consider topical estrogens after excluding contraindications

Diagnostics: What Everyone Needs and When Advanced Methods Are Required

The basic minimum includes a collection of complaints, an examination, a general urine analysis using a dipstick or automated method, and, if necessary, a urine culture before starting antibiotics. In the typical presentation of uncomplicated cystitis in non-pregnant women, a urine culture is not always necessary, but in cases of relapses, atypical course, treatment failure, or the presence of risk factors, it is essential. [7]

Women's gynecological status is assessed to rule out vaginitis, atrophic changes, and prolapse that mimic or support symptoms. Sexually transmitted infections require laboratory testing if indicated. Determination of residual urine and assessment of pelvic floor function are indicated if a voiding disorder is suspected. [8]

Instrumental methods are added according to strict indications. Ultrasound and cystoscopy are indicated for macrohematuria, recurrences without confirmed bacteriuria, and persistent symptoms despite adequate therapy to rule out bladder pain syndrome and other urological pathologies. The detection of trigonitis alone does not dictate treatment unless there is a clinical correlation. [9]

Standardizing terminology helps prevent missed diagnoses. Urethral pain syndrome is used to describe pain originating in the urethra, while chronic bladder pain is described as bladder pain syndrome, which requires a fundamentally different treatment approach. [10]

Table 3. Diagnostic minimum and indications for deepening

Step	What to do	When to deepen
Initial visit	Complaints, physical examination, test strip	Atypical symptoms, ineffectiveness
Laboratory	Urine culture in case of relapse or unclear picture	Always with recurring episodes
Gynecological evaluation	Exclude atrophy, vaginitis, prolapse	Postmenopause, dyspareunia
Instrumental methods	Ultrasound, cystoscopy as indicated	Macrohematuria, persistent symptoms without bacteriuria

Treatment according to clinical scenarios

Acute uncomplicated cystitis in a non-pregnant woman

Short courses are recommended: nitrofurantoin for 5 days, fosfomycin once a day, and pivmecillinam for 3 days in countries where it is available. The choice takes into account local resistance, tolerability, and contraindications. Symptomatic support does not cancel antibacterial therapy if the diagnosis is confirmed and the complaints are severe. [11]

Table 4. First-line drugs for acute cystitis

Preparation	Typical mode	Comments
Nitrofurantoin	100 mg 2 times a day for 5 days	Effective with preserved kidney function
Fosfomycin trometamol	3 g once	Ease of use
Pivmecillinam	400 mg 3 times a day for 3 days	Regional availability and resistance

Cervical cystitis as a mask for recurrent infection

If symptoms recur and infection is confirmed by culture, it is considered a recurrent infection. The basic strategy includes risk factor modification, correction of estrogen deficiency in postmenopausal women, discussion of non-antibiotic prophylactic methods, and only then consideration of long-term antibiotic prophylaxis. [12]

Non-antibiotic prophylaxis includes topical estrogens in women with hypoestrogenism, methenamine hippurate in patients without urinary tract abnormalities, immunoactive agents and bacterial vaccines, and probiotic regimens with specific strains. Recommendations regarding cranberry remain cautious due to heterogeneity of data. [13]

Table 5. Non-antibiotic relapse prevention: what is the evidence

Method	For whom	Level of support in manuals
Vaginal estrogens	Women with hypoestrogenism	Recommended as a means of reducing relapses
Methenamine hippurate	Women without urinary tract anomalies	Supported by updated guidelines and research
Immunoactive drugs and vaccines	Women with frequent relapses	Positive data, but consideration of research quality is essential
Probiotics with specific strains	Patients who cannot tolerate other measures	The effect is strain-dependent; choose regimens with proven effectiveness.
Cranberry	At the patient's request	The data are conflicting, the effect is moderate and not universal

If confirmed relapses persist despite appropriate prophylaxis, postcoital or continuous low-dose antibiotic prophylaxis is considered, with mandatory reassessment after 3-6 months and safety monitoring. This option is considered a last-line option, taking into account the principles of antimicrobial strategy. [14]

Symptoms without infection: urethral pain syndrome and bladder pain syndrome

For typical complaints without bacteriuria or other obvious cause, definitions and management strategies adopted by the International Continence Society and professional societies are used. The basis is non-pharmacological measures, bladder training, pelvic floor work, cognitive and behavioral approaches, pain management, and stepwise specialized interventions as indicated. Antibiotics are not indicated here. [15]

Table 6. When "cervical cystitis" turns out not to be an infection

Scenario	Key Features	Basic approach
Urethral pain syndrome	Urethral pain, frequent urination, negative cultures	Non-pharmacological methods, symptom control, observation
Bladder pain syndrome	Chronic pelvic pain associated with the bladder, other causes excluded	Step-by-step treatment program, without routine antibiotics

Trigonitis as a morphological finding: when and what to treat

Detection of trigonitis during cystoscopy without clinical manifestations does not require independent treatment. If the patient has frequent laboratory-confirmed recurrences and suspected persistent lesions in the trigone and cervix, some centers are considering endoscopic coagulation of the mucosa in this area. A reduction in the number of episodes has been noted in the first few years, but the evidence base is limited, and the procedure remains an option for refractory cases after conservative measures have been exhausted. [16]

Table 7. Trigonitis: what is known about specialized interventions

Intervention	For whom	What the research shows
Endoscopic coagulation of the triangle	Women with relapses refractory to prophylaxis	Reduction in the number of infections in the first 1-2 years, controlled studies are needed
Hospital pain management programs	Patients with bladder pain syndrome	Stepwise interventions according to guidelines, effectiveness depends on phenotype

Prevention, lifestyle, and what really works

Increasing fluid intake, regular urination without prolonged delays, correcting constipation, practicing intimate hygiene without harsh products, and urinating after intercourse are simple measures that help some patients and support the effectiveness of medical strategies. They are safe, inexpensive, and consistent with the goals of the antimicrobial strategy. [17]

In postmenopause, local estrogens have demonstrated evidence of benefit in reducing the frequency of recurrences, provided there are no contraindications and under medical supervision. This is especially important if "cervical cystitis" formally masks a recurrent infection due to urogenital tract atrophy. [18]

Methenamine hippurate is considered an alternative to long-term antibiotics in women without structural abnormalities, as reflected in guideline updates and reviews. It forms bacteriostatic formaldehyde in acidic urine and does not increase antibiotic resistance. [19]

Immunoactive drugs and bacterial vaccines have been shown to reduce recurrence rates in several studies, but the quality and consistency of the data vary; their use is possible in carefully selected patients. Regarding cranberry, current studies have yielded mixed results, so the decision is made individually, taking into account preferences and tolerability. [20]

Table 8. Practical checklist for prevention

Direction	Concrete steps	Comment
Behavior and routine	Drink 1.5-2.0 liters of water per day in the absence of restrictions, do not delay the urge to urinate, correct constipation	Supports the effect of other measures
Sexual activity	Urination after coitus, individual contraception	Postcoital prophylaxis is discussed for provoked episodes
Hormonal status	Vaginal estrogens for atrophy and relapses	Reduces the frequency of relapses
Non-antibiotic measures	Methenamine hippurate, immunoactive drugs, probiotics with evidence-based strains	Alternative or complement to antibiotics

When to seek urgent help and what is the long-term outlook?

Immediate care is needed for macrohematuria, fever, severe flank pain, nausea and vomiting, urinary retention, and, in pregnant women, any symptoms of infection. These situations are associated with a risk of complications and require a different approach than for uncomplicated cystitis. [21]

The prognosis with a properly verified diagnosis is favorable. Most women with acute uncomplicated cystitis recover with short courses of antibiotics. In case of relapses, a careful combination of risk factor correction, local estrogen supplementation in women with estrogen deficiency, non-antibiotic treatments, and, if necessary, time-limited antibiotic prophylaxis can significantly reduce the incidence of episodes. [22]

In some patients with a chronic pain component, the key to improvement is correct routing into the paradigm of urethral pain syndrome or bladder pain syndrome, where antibiotics are not the primary treatment and success is determined by behavioral and specialized methods. [23]