What are the typical symptoms of vaginitis?

Typical Symptoms of Vaginitis

The most common symptoms of vaginitis include abnormal vaginal discharge, vulvovaginal itching, burning, irritation, dyspareunia, "fishy" vaginal odor, and external dysuria, though the specific symptom pattern varies by etiology. 1, 2

Symptom Patterns by Vaginitis Type

Vulvovaginal Candidiasis (VVC)

• Intense vulvar pruritus is the most specific symptom, often accompanied by thick, white "cottage-cheese" discharge, vulvar erythema and edema, vaginal soreness, burning, dyspareunia, and external dysuria (when urine contacts inflamed vulvar skin). 3, 4
• Symptoms characteristically worsen premenstrually. 5
• Vaginal pH remains normal (≤4.5), distinguishing it from bacterial vaginosis or trichomoniasis. 3, 4
• Discharge is typically odorless; the absence of odor makes candidiasis more likely (LR 2.9). 6

Bacterial Vaginosis (BV)

• A homogeneous, thin, white or gray discharge that adheres to vaginal walls is characteristic, accompanied by a "fishy" vaginal odor that intensifies after intercourse or with alkaline exposure. 3
• Vaginal pH is elevated (>4.5). 3, 2
• Approximately 50% of women meeting clinical criteria for BV are asymptomatic. 3
• The absence of perceived odor makes BV unlikely (LR 0.07). 6

Trichomoniasis

• Diffuse, malodorous, yellow-green vaginal discharge with vulvar irritation is typical, though many women have milder or fewer symptoms. 3
• Vaginal pH is elevated (>4.5). 2
• A fishy odor may be present with KOH application (whiff test). 3
• The majority of infected men are asymptomatic, whereas most women are symptomatic. 3

Critical Diagnostic Limitations

• Symptoms alone cannot reliably distinguish between vaginitis etiologies; the absence of itching makes candidiasis less likely (LR range 0.18–0.79), but positive symptoms have poor discriminatory power. 6
• Only 35–40% of women reporting genital itching actually have vulvovaginal candidiasis confirmed by objective testing. 5
• Self-diagnosis of yeast infection is unreliable, with fewer than 50% of self-diagnosed cases confirmed by laboratory testing. 4

When Physical Examination Adds Diagnostic Value

• Inflammatory signs (erythema, edema, excoriation, fissures) are associated with candidiasis (LR range 2.1–8.4). 6
• A "high cheese" odor on examination predicts bacterial vaginosis (LR 3.2), while lack of odor is associated with candidiasis (LR 2.9). 6
• Office laboratory tests—particularly wet-mount microscopy with 10% KOH to visualize yeast/pseudohyphae, clue cells, or motile trichomonads—are essential for accurate diagnosis before initiating treatment. 3, 4

Overlapping and Atypical Presentations

• Vulvovaginal candidiasis can occur concomitantly with sexually transmitted diseases, requiring appropriate testing when symptoms are present. 3, 7
• Vaginal discharge characteristics do not significantly distinguish cytolytic vaginosis from other forms of vaginitis, highlighting the need for microscopic confirmation. 8
• Noninfectious causes (atrophic, irritant, allergic, inflammatory vaginitis) account for 5–10% of cases and present with similar symptoms but require different management. 2

Red Flags Requiring Immediate Evaluation

• Systemic signs such as fever, chills, or lower abdominal pain suggest possible pelvic infection and warrant urgent assessment. 4
• Persistent symptoms after appropriate therapy or recurrence within 2 months necessitate further evaluation, including vaginal culture to identify non-albicans Candida species or alternative diagnoses. 4, 7