Vaginitis and Sexually Transmitted Infections

Overview of Vaginitis

Vaginitis encompasses a variety of symptoms and disorders affecting the vaginal area. Key characteristics of vaginitis include:

Symptoms that are nonspecific in nature.
Laboratory documentation of a specific disorder is essential before therapy initiation.
Empiric therapy should be avoided to prevent misdiagnosis; many cases are incorrectly evaluated based on history and physical examination alone.
Factors that can lead to vaginitis include infections and inflammation. Noteworthy mentions include:
- Phase of the menstrual cycle
- Sexual activity
- Choice of contraceptive methods
- Pregnancy
- Presence of foreign bodies
- Estrogen levels
- Use of hygienic products or antibiotics
  These factors can disrupt the normal vaginal ecosystem, leading to the condition.

Symptoms of Vaginitis

Vaginitis presentations can include the following symptoms:

Change in the volume, color, or odor of vaginal discharge
Pruritus (itching)
Burning sensation
Irritation of the vaginal area
Erythema (redness of the skin)
Dyspareunia (pain during intercourse)
Spotting (light bleeding)
Dysuria (painful urination)

Normal vs. Pathologic Vaginal Discharge

Normal Vaginal Discharge

Normal discharge quantity ranges from 1 to 4 mL per 24 hours. This fluid is typically white or transparent, with a thick or thin consistency, and mostly odorless.
It is formed from mucoid endocervical secretions combined with sloughing epithelial cells, normal vaginal flora, and vaginal transudate.
Physiological leukorrhea refers to the increased discharge that can occur during mid-menstrual cycles (ovulation), pregnancy, or due to estrogen-progestin contraceptives.
Factors that can influence normal discharge include diet, sexual activity, medications, and stress.

Pathologic Vaginal Discharge

Discharge that is yellowish, slightly malodorous, or accompanied by mild irritative symptoms—when associated with pruritus, pain, burning, significant irritation, or visible erythema, erosions, or cervical friability—is indicative of a pathological condition such as vaginitis or cervicitis.

Patient History for Vaginitis Assessment

Key Historical Points

Symptom Duration: Are symptoms acute, chronic, or recurrent? Acute processes are more likely to be due to infections, while chronic conditions point towards inflammation.
Pelvic Pain: Presence of pelvic pain suggests pelvic inflammatory disease. Suprapubic pain could indicate cystitis; neither is common with vaginitis.
Sexual Practices: Important to determine gender of sexual partners. Women having sex with women have an increased risk of bacterial vaginosis. Inquire about new sexual partners, as they can increase the risk of sexually transmitted infections (STIs).
Symptoms Relation to Menstrual Cycle: Symptoms of Candida vulvovaginitis are often premenstrual, whereas those of trichomoniasis can occur during or after menstruation.
Medications: Identify any antibiotics or hormonal therapies that might predispose to conditions such as Candida vulvovaginitis.
Hygienic Practices: Mechanical, chemical, or allergic irritations may mimic infectious symptoms; product use (scented panty liners, spermicides, soaps, etc.) can lead to vulvovaginal issues.
Menopausal Status: Atrophic vaginitis is prevalent in hypoestrogenic women, often emerging in postpartum, lactation, or during the use of antiestrogen medications.

Physical Examination Findings

General Observations

Normal examination of the vulva often indicates bacterial vaginosis.
Signs such as erythema, edema, or fissures may suggest candidiasis, trichomoniasis, or dermatitis.
Atrophic changes are indicative of hypoestrogenemia.
Speculum exam may reveal lesions or foreign bodies (e.g., retained tampons), which can produce discharge or spotting and foul odors due to inflammation.

Characteristics of Vaginal Discharges by Causative Agents

Trichomoniasis: Typically presents with a greenish-yellow purulent discharge.
Candidiasis: Noted for a thick, white, adherent discharge resembling cottage cheese.
Bacterial Vaginosis: Characterized by a thin, homogeneous, gray discharge with a fishy odor.
Cervical Inflammation: If the cervix appears erythematous and friable, with a mucopurulent discharge, this may indicate cervicitis rather than vaginitis.

Diagnostic Testing for Vaginitis

pH Testing: Use of pH paper to assess vaginal acidity.
Microscopy: Saline and KOH mounts to visualize discharge characteristics.
Whiff Test: Detects a fishy odor when KOH is added to the sample.
Cervical and Vaginal Cultures: used to diagnose infections, including STIs.

Bacterial Vaginosis (BV)

General Overview

BV is the most common cause of vaginal discharge; it is termed "vaginosis" due to the absence of inflammation relative to vaginitis.
This condition arises from an imbalance in the vaginal flora, defined by a decrease in lactobacilli and an increase in other organisms like Gardnerella vaginalis.
Although the exact causes of this imbalance and the role of sexual activity are not fully defined, it is established that an increase in vaginal pH allows anaerobic bacteria to break down vaginal peptides into amines, creating a recognizable malodorous discharge.

Risk Factors for BV

Multiple or new sexual partners.
Douching practices.
Cigarette smoking.
Increased incidence is observed in same-sex relationships.

Diagnosis Criteria for BV

Diagnosis hinges upon:

Presence of a homogenous, thin, grayish-white discharge that coats the vaginal wall.
Vaginal pH greater than 4.5.
Positive whiff test with a fishy odor upon addition of KOH.
Identification of clue cells on saline mount, defined as vaginal epithelial cells displaying adherent coccobacilli along their edges.

Complications and Treatment of Bacterial Vaginosis

Associated Risks

Patients with BV have higher risks of preterm delivery, endometritis, postpartum fever, and infections post-hysterectomy.
There is an increased risk of HIV acquisition and transmission, as well as susceptibility to STIs like herpes simplex, gonorrhea, and chlamydia, specifically for women with pelvic inflammatory disease (PID).

Treatment Protocols

Spontaneous resolution may occur in one-third of nonpregnant women and half of pregnant women with BV.
Treatment is often needed for symptom relief and to prevent infections during surgical procedures.
Controversially, some experts suggest treating all women for BV to reduce the risk of acquiring STIs, including HIV, regardless of symptom presence.
Treatment recommendations for nonpregnant patients include:
- Metronidazole: 500 mg orally twice daily for 7 days, or 0.75% gel intravaginally once daily for 5 days.
- Clindamycin: 2% cream intravaginally at bedtime for 7 days, or 300 mg orally twice a day for 7 days.
- Alternatives: Tinidazole or secnidazole can also be explored.

Recurrent Bacterial Vaginosis

The recurrence rate is approximately 30% within 3 months and 50% within 12 months after treatment.
Strategies for managing recurrent cases may include lengthening treatment periods and considering alternative medications or maintenance therapy, such as metronidazole gel twice weekly for 3 to 6 months.
Preventive measures include condom use or patient abstinence during treatment.

Candida Vulvovaginitis

Clinical Features

Symptoms include vulvar pruritus, dysuria, soreness, irritation, and dyspareunia.
Discharge is typically white and clumpy (curd-like) with physical examination often revealing redness, vulvar edema, and thick adherent discharge.
Candida albicans accounts for 80-90% of cases, with the condition being prevalent among premenstrual women.
The recurrence of episodes is common, with significant percentages of women experiencing multiple infections throughout their lives.

Risk Factors

Key predisposing factors for candida infections include:

Diabetes mellitus, particularly with poor glycemic control.
Recent use of broad-spectrum antibiotics.
Increased estrogen levels due to various factors like contraceptive pills, pregnancy, or hormone replacement therapy (HRT).
Immunosuppression from diseases or medications.
The presence of vaginal contraceptive devices.
Genetic susceptibility and certain behavioral factors.

Diagnosis

Vaginal pH typically ranges from 4 to 4.5.
Microscopic examination (wet mount and KOH mount) aids in identifying yeast and hyphae.
Culture may confirm the species for persistent or recurrent infections.
Careful differentiation from other infections like BV and hypersensitivity reactions is essential for accurate diagnosis.

Treatment for Uncomplicated Vaginal Candidiasis

Treatment is required primarily for symptom relief. The following drugs are available:
Butoconazole, Clotrimazole, and Miconazole have various formulations including creams and vaginal tablets.
Nystatin: 100,000 U vaginally can be used for 14 days.
Fluconazole is effective as a single dose of 150 mg orally.
Cure rates exceed 80% across topical/systemic azoles; most treatments are equally effective.

Complicated Candida Infections

Infections categorized as complicated may include factors like poorly controlled diabetes, severe symptoms, non-albicans species, or history of recurrent infections.
Expected management should extend treatments from 7-14 days, often with combinations of topical and oral therapies.
Patients with recurrent vulvovaginal candidiasis may require induction therapy followed by maintenance plans to prevent further occurrences.

Trichomonas Vaginalis

Overview

A flagellated protozoan causing infections primarily in the female lower genitourinary tract and is associated with urethritis in men. An asymptomatic carrier rate is high.
Associated clinical features include purulent discharge, vulvar itching, dysuria, and often results in inflammation and symptoms resembling cervicitis. The incubation period ranges from 4 to 28 days.

Complications

Women face risks of infertility due to PID and subsequent complications while men can experience prostatitis. The infection increases HIV susceptibility.

Diagnosis and Treatment of Trichomonas Vaginalis

Diagnosis

Detection of motile trichomads via wet mount remains reliable, while pH above 4.5 and cultures provide additional confirmation.
New rapid assays are available for point-of-care testing.

Treatment Options

Both partners must be treated regardless of symptoms to prevent recurrence. Key treatment regimens include:
- Metronidazole or Tinidazole: with a 2 g single dose or a more extended 500 mg course.
- Alcohol consumption should be strictly avoided during treatment followed by a specific withdrawal period.

Chlamydia trachomatis

Overview

Detected as the most common sexually transmitted infection in the U.S., with millions of reported cases annually. It is caused by a small Gram-negative bacterium and is often asymptomatic.

Risk Factors

High-risk groups include adolescents, individuals with multiple or new sexual partners, and those with lower socioeconomic status. Prior infections exacerbate the risk for new cases.

Clinical Manifestations

Women often present with cervicitis, whereas men may demonstrate urethritis and dysuria. Long-term complications include infertility and PID, which can pose risks for pregnancy complications.
Neonatal transmission can lead to conjunctivitis and pneumonia in infants born to infected mothers.

Diagnosis and Treatment

Diagnosis involves traditional cultures or more accessible urine-based screening tests. Women under 25 should be routinely screened, with partner treatment required.
Recommended treatment includes Doxycycline or Azithromycin, with guidelines suggesting specific formulations based on patient history and drug sensitivity.

Gonorrhea

Clinical Features and Treatment

Gonorrhea can affect multiple genital and extragenital sites. Asymptomatic cases are prevalent, but when symptomatic, patients might experience discharge, dysuria, and pelvic inflammatory disease.
Treatment generally centers on Ceftriaxone, with a focus on testing for accompanying chlamydia infections due to their common concurrent presentation.

Diagnosis

Culture remains the gold standard for diagnosis, with sensitivity in line with PCR methods providing complementary diagnostic information.

Pelvic Inflammatory Disease (PID)

Definition and Clinical Presentation

PID encompasses upper genital tract infections and may lead to systemic complications such as fever, abdominal pain, or alterations in menstrual discharge patterns.
Differential diagnosis includes a spectrum of other potential causes, such as gastrointestinal and urinary tract infections.

Diagnosis and Management

Laboratory tests including pregnancy tests, wet mounts, and microbial cultures are critical in confirming PID.
Treatment often involves broad-spectrum antibiotics and may require hospitalization in severe cases.

Mycoplasma Genitalium

Overview and Treatment

Mycoplasma genitalium is implicated in causing urethritis and cervicitis, with symptoms akin to other STIs. Appropriate identification often requires testing in cases negative for common pathogens.
Treatment effective protocols include Doxycycline followed by Moxifloxacin for infections that persist or are recurrent.

Genital Warts

Treatment Options

Caused by Human Papillomavirus (HPV), treatment modalities range from surgical excision to topical immune modulators and physical destruction techniques.
Prevention is facilitated through vaccination against HPV.

Genital Herpes

Clinical Features and Management

Primarily caused by HSV-2 or HSV-1, characterized by painful vesicular lesions. Initial episodes may present with systemic symptoms.
Treatment focuses on antiviral medications such as Acyclovir, Famciclovir, and Valacyclovir.
Individuals may require both episodic and suppressive therapy depending on frequency and severity of outbreaks.

Syphilis

Clinical Staging and Treatment Protocols

Early stages involve classic lesions like chancre, progressing through recurrent rash and systemic manifestations. Testing methods include a combination of serologic and clinical evaluations. Treatment regimens differ based on the stage of syphilis.

Chancroid

Presentation and Diagnostic Standards

Soft chancre can be diagnosed via culture, with treatment protocols including single doses of Azithromycin or Ceftriaxone.

Infestation by Pubic Lice

Management

Treatment often includes topical agents such as Permethrin, alternative regimens like Ivermectin, with instructions for application outlined to ensure effectiveness.