All women should know the most common vaginal diseases because at some point in their lives they may suffer from them. In this way, and thanks to the knowledge, they will be able to assess whether the disease or infection they have may be something serious or not, but in any case, a visit to the doctor is more than guaranteed. Vaginal infections with abundant vaginal discharge are quite common and there are also women who are more prone to them.

Types of common vaginal diseases

 

  1. Fungal infections. This is the most common type of vaginitis, it is a yeast infection caused by one of many species of fungi called Candida. These types of fungi live naturally in the body in very small numbers and although they are found in the vagina they do not usually cause any harm. But Candida can thrive in a hot humid environment without air causing a vaginal infection. If you have itching, thick and/or foul-smelling vaginal discharge, and even itching, you probably have a yeast infection.
  2. Bacterial vaginosis. Along with fungi, there are other bacteria called lactobacilli that also live in the vagina. When the number of lactobacilli gets too low, it can lead to a condition known as bacterial vaginosis – infection. With bacterial vaginosis, a woman may have a thick, whitish, slippery, and/or clear vaginal discharge. With this condition she does not usually itch or sting, but she does have a fishy odor, especially during intercourse.
  3. Trichomoniasis. Of the common infections in the vagina, this is caused by sexual transmission caused by a unicellular parasite -trichomonas vaginalis- and transmitted by the couple during intercourse. The symptoms are similar to those of any other vaginal infection: inflammation of the vulva, yellowish, gray or greenish vaginal discharge with a fishy odor. You may even feel pain when you urinate.
  4. Other common vaginal diseases. There are also other common vaginal diseases such as: non-infectious vaginitis – the skin of the vagina has a reaction to something that comes into direct contact and the skin is irritated but without itching due to infection-, vulvodynia – women have chronic pain or discomfort in the vagina for no apparent reason- or viral vaginosis -a virus that causes vaginal infections.
## How clinicians diagnose vaginal diseases — what to expect and what you can do Accurate diagnosis is the foundation of effective treatment. As a gynecologist, when a patient presents with vaginal symptoms I follow a structured approach that you can expect and prepare for: - **History:** Expect questions about the onset and pattern of symptoms, recent antibiotics or steroid use, sexual activity (including new partners and condom use), contraceptives, pregnancy, diabetes, and any prior similar episodes. - **Physical exam:** A vulvar and speculum exam allows direct visualization of the discharge, inflammation, lesions, or atrophy. - **On-office tests:** These are quick and provide key clues: - Vaginal pH test (normal ≤4.5; higher pH suggests BV or trichomonas). - Wet mount microscopy (saline and KOH): looks for clue cells (BV), motile trichomonads (trichomonas), or budding yeast/hyphae (candidiasis). - Whiff test (KOH added to discharge): a fishy odor supports BV. - **Laboratory tests when needed:** - NAAT (nucleic acid amplification tests) for STIs like chlamydia, gonorrhea, and trichomonas — these are more sensitive than microscopy. - Culture or PCR for Candida species in recurrent or resistant cases. - Viral PCR when herpes or other viral processes are suspected. - Biopsy if lichen sclerosus, lichen planus, or suspicious lesions are present. Practical advice before your visit: - Avoid douching, spermicides, and vaginal creams for 48 hours before testing. - Do not have intercourse 24–48 hours before the appointment. - Bring a list of medications, recent antibiotics, and a sexual history (recent partners) — this helps direct testing. - If possible, bring a photo of discharge stains or a short note describing color/odor/timing — subjective details are clinically useful. Real example: - Patient A, 32-year-old, came after three days of thick, white, cottage-cheese discharge and severe itch. She had completed a 7-day course of antibiotics two weeks prior for sinusitis. On exam she had erythema and white curd-like discharge. Wet mount showed pseudohyphae. Diagnosis: vulvovaginal candidiasis after antibiotic use. Treatment: single-dose oral fluconazole 150 mg (if not pregnant) or 7-day topical azole (miconazole or clotrimazole) for pregnancy. ## Treatment and prevention — evidence-based, actionable steps Treatment varies by cause. Below I give practical, stepwise approaches including first-line medications, when to refer, and prevention strategies. Fungal infections (vulvovaginal candidiasis) - First-line: - **Uncomplicated:** Single oral fluconazole 150 mg (one dose) OR topical azole creams or suppositories (clotrimazole 1%–2% for 1–7 days, miconazole 2%). - **Pregnancy:** Avoid oral fluconazole. Use topical azoles for 7 days. - Recurrent (≥4 episodes/year): - Confirm diagnosis with culture or PCR first. - Treatment often involves induction with fluconazole 150 mg q72h x 3 doses, then maintenance 150 mg weekly for 6 months. - Evaluate for diabetes or immunosuppression. - Practical tips: - Use cotton underwear, avoid tight synthetic clothing, change out of wet swimsuits quickly. - Topical treatments can be messy; apply at night and wear a panty liner. - Avoid unnecessary topical steroids unless directed for dermatitis. Bacterial vaginosis (BV) - First-line: - Metronidazole 500 mg orally twice daily for 7 days OR metronidazole gel 0.75% intravaginally once daily for 5 days OR clindamycin cream 2% intravaginally at bedtime for 7 days. - Notes: - Avoid alcohol during and 24 hours after metronidazole (48 hours for tinidazole). - Treat sexual partners only if symptomatic (routine partner treatment not universally recommended, but discuss individual cases). - Recurrence management: - For recurrent BV, consider topical metronidazole gel twice weekly for 4–6 months as maintenance. - **Adjunctive measures:** avoid intravaginal douching; consider probiotics (Lactobacillus-containing) — evidence is growing but not conclusive. - Practical example: - Patient B, 29, had recurrent BV after switching to an IUD. Management included 7-day oral metronidazole, counseling on IUD-associated risk, and a 3-month maintenance plan with metronidazole gel twice weekly; she was also advised on condom use with new partners. Trichomoniasis - First-line: - Metronidazole 2 g orally in a single dose OR tinidazole 2 g orally single dose. - Alternatively, metronidazole 500 mg orally twice daily for 7 days (often used in HIV-positive women). - Important: - Treat sexual partners simultaneously to prevent reinfection. - Abstain from sex until both partners have completed therapy and are symptom-free. - Practical point: - Positive NAAT allows more sensitive detection; always consider testing for other STIs. Non-infectious vaginitis, vulvodynia, lichen sclerosus/planus, atrophic vaginitis - Non-infectious contact vulvovaginitis: - Identify and stop the offending agent (detergent, feminine hygiene products, spermicides, latex). - Short course of topical low-potency steroid (hydrocortisone 1%) for dermatitis; if severe, see a specialist. - Vulvodynia: - Multimodal treatment: topical anesthetics, low-dose tricyclics, pelvic floor physical therapy, and cognitive-behavioral therapy. - Lichen sclerosus/planus: - Require diagnosis by biopsy in unclear cases. - High-potency topical steroids (e.g., clobetasol propionate) under specialist supervision; long-term follow-up for malignant transformation risk. - Atrophic vaginitis (postmenopausal): - Local vaginal estrogen (cream, tablet, or ring) is highly effective and safe for most women; discuss risks/benefits with your clinician. - Non-hormonal lubricants and moisturizers are adjuncts for sexual activity. ## Practical self-care, home remedies, and what to avoid Many patients try home remedies; some are safe, others harmful. Practical guidance: - Safe and useful: - Plain yogurt with live cultures taken orally may help restore gut flora after antibiotics; evidence for vaginal application is weak and not routinely recommended. - Over-the-counter topical azoles (miconazole, clotrimazole) are effective for most uncomplicated yeast infections. - Non-irritating water-based lubricants for intercourse. - Keep the vulvar area dry; wear breathable cotton underwear. - Avoid or use caution: - Douching: disrupts vaginal flora and increases risk of BV, PID, and adverse pregnancy outcomes. - Vinegar, hydrogen peroxide, or tea tree oil applied intravaginally: can cause severe irritation and chemical burns. - Unsupervised long-term topical steroids — can thin vulvar skin and mask other conditions. - When to seek immediate care: - Fever, severe pelvic pain, heavy bleeding, foul-smelling discharge with systemic symptoms, or symptoms that rapidly worsen — seek prompt medical evaluation. Real-world example: - Patient C, 41, self-treated with multiple courses of OTC antifungal cream over 6 months with only temporary relief and progressive burning. On evaluation, she had lichen sclerosus confirmed by biopsy. Takeaway: persistent symptoms need clinician evaluation — not all vulvar burning is yeast. ## Managing recurrent and resistant infections — advanced strategies Recurrent vaginal infections are a common and frustrating problem. Here are detailed steps I use in practice: 1. Confirm the diagnosis: - Culture or PCR for Candida species (non-albicans species may be resistant to fluconazole). - Repeat NAAT for trichomonas/BV if clinically suspected. 2. Investigate underlying causes: - Check for diabetes (HbA1c), HIV, immunosuppressive medications, pregnancy. - Review recent antibiotic exposure and contraceptive changes. 3. Tailored treatment: - For recurrent Candida with C. glabrata: topical boric acid 600 mg vaginal capsule nightly for 14 days (must be prescribed/monitored; contraindicated in pregnancy). - For recurrent BV: consider combined oral/metronidazole plus targeted maintenance therapy and behavioral modifications. 4. Specialist referral: - If symptoms persist despite appropriate therapy, refer to a vulvar clinic or infectious disease gynecologist for advanced testing and multidisciplinary care. 5. Behavioral and sexual counseling: - Discuss partner testing and treatment for trichomonas. - Address sexual practices that may predispose to recurrence (frequent oral sex with new partners, multiple partners, inconsistent condom use). Practical example: - Patient D, 37, had six culture-proven yeast infections in 12 months. Culture grew C. glabrata. She was treated with a 2-week course of boric acid capsules, followed by monthly maintenance with topical nystatin cream and vaginal probiotic suppositories. Her episodes reduced to one per year. ## When pregnancy changes management Pregnancy alters safe medication choices and increases the importance of definitive diagnosis. - Yeast infections: treat with topical azole agents (miconazole or clotrimazole) for 7 days; avoid oral fluconazole. - BV in pregnancy: treat symptomatic BV and consider treatment for those with risk factors for preterm birth; discuss with obstetric provider. - STIs: treat promptly with pregnancy-appropriate regimens (metronidazole is safe in pregnancy for trichomonas and BV). - Always inform your obstetrician/gynecologist if you are pregnant before taking OTC or prescription medications. Real example: - Patient E, 27-week pregnant, presented with malodorous discharge; NAAT confirmed trichomonas. She received metronidazole 2 g orally once and her partner was treated. Her pregnancy proceeded without complications. ## Sexual health, contraception, and implications for vaginal disease Contraceptives and sexual behaviors can influence vaginal flora and infections. - Hormonal contraceptives: - Some women note decreased BV with combined hormonal contraceptives; evidence mixed. - Copper IUDs may be associated with a slightly higher risk of BV in some studies, though data are inconsistent. - Barrier methods: - Condoms reduce STI risk and can reduce reinfection with trichomonas. - New sexual partners: - Increase risk of BV and STIs; discuss testing and safe sex practices. - Practical counseling points: - Discuss STI screening frequency with your clinician based on behavior. - Consider partner treatment when indicated (trichomonas, symptomatic BV in the partner, and all STIs). Visit our [related topic](/blog) page for more on sexual health and contraception, and see recommended over-the-counter products at our [shop](/shop). ## Patient-facing checklist: what to bring and expect at your gynecology visit - Bring: - List of medications and supplements. - Recent antibiotic prescriptions. - Sexual history (number of partners in past 6 months, condom use). - A symptom diary (onset, color, odor, timing, relation to menses/sex). - Expect: - A respectful and private exam with explanations at each step. - Possible swabs and quick tests; most offices can do NAATs or send cultures. - A treatment plan tailored to your diagnosis, with follow-up if symptoms persist. - Ask your provider: - “What test confirmed this diagnosis?” - “Are there safe ways to prevent recurrence?” - “Is my partner at risk or needing treatment?” - “What are the side effects of the proposed treatment?” ## When to seek specialist care Refer to a gynecologist specializing in vulvar disease if you or your provider note: - Recurrent infections unresponsive to appropriate therapy. - Severe pain, ulceration, scarring, or suspicious lesions. - Suspected lichen sclerosus, lichen planus, or pigmented vulvar lesions. - Complex cases in pregnant patients or women with immunosuppression. ## FAQ ### What is the difference between vaginal infection and vulvar irritation? A vaginal infection involves organisms (bacteria, yeast, parasites, or viruses) affecting the vagina and often causes discharge, odor, and sometimes itching. Vulvar irritation (contact dermatitis or vulvitis) affects the external genital skin and is often caused by detergents, soaps, topical products, or fabrics — it usually presents with burning, soreness, and redness rather than abnormal discharge. Examination helps differentiate them; treatment is targeted to the cause: remove the irritant and use topical anti-inflammatory therapy for dermatitis versus antimicrobials for infections. ### How can I tell if my discharge is normal or a sign of disease? Normal vaginal discharge is typically clear to white, odorless, and varies with your menstrual cycle (heavier around ovulation). Signs suggestive of disease include: - Thick, white, cottage-cheese-like discharge with intense itching (yeast). - Thin, grayish-white discharge with a fishy odor (BV). - Frothy, yellow-green discharge with itching and dysuria (trichomonas). - Blood-tinged, foul-smelling, or purulent discharge — seek immediate care. When in doubt, consult a clinician for testing rather than self-diagnosing. ### Can probiotics prevent recurrent vaginal infections? Probiotics containing Lactobacillus species may help restore vaginal flora and have shown promise in some studies, especially as adjuncts to antibiotics for BV. However, evidence is mixed, formulations vary, and over-the-counter products are not standardized. If you choose to use probiotics, select products with documented Lactobacillus strains and discuss with your clinician. They are an adjunct — not a guaranteed prevention strategy. ### Are over-the-counter antifungal creams safe to use every time I have itching? OTC azole antifungals are safe and effective for uncomplicated yeast infections. However: - If symptoms recur within weeks, or if you have more than three or four episodes annually, see a clinician. - If you are pregnant, choose topical azoles and avoid oral fluconazole. - Burning, severe pain, or unusual appearance warrants clinical evaluation before self-treatment. Prolonged self-treatment without improvement risks delaying correct diagnosis. ### Will treating my partner reduce recurrence of infection? It depends on the diagnosis: - Trichomonas: treat sexual partners — reinfection is common without partner therapy. - BV: partner treatment is not routinely recommended in all cases, but discuss with your clinician for recurrent BV. - Yeast infections: partner treatment is not usually needed unless the partner has symptoms (balanitis) or recurring mutual reinfection is suspected. Clear communication with partners and abstaining until treatment completion help reduce recurrence. --- Category: Signs & Symptoms Topic: Types of vaginal diseases that you should know about If you have persistent symptoms despite treatment, or if you are uncertain about the cause of your symptoms, schedule an appointment with your gynecologist. For more in-depth articles on individual conditions see our [related topic](/blog) and to purchase clinician-recommended products visit our [shop](/shop).