Itching, Odor, and Dryness in the Intimate Area - Causes and Proper Care

The Intimate Area Has Its Own Ecosystem

The intimate area (vulva and vagina) hosts its own bacterial community (vaginal flora), similar to gut flora. The key player in healthy vaginal flora is Lactobacillus, which makes up over 90% of vaginal bacteria. Lactobacillus converts glycogen into lactic acid, maintaining vaginal pH at a mildly acidic 3.8 to 4.5. This acidic environment functions as a natural barrier that suppresses the growth of Candida and bacteria that cause bacterial vaginosis.

Most intimate area problems (itching, odor, abnormal discharge) occur when this vaginal flora balance is disrupted. The essence of proper care is not about "keeping clean" but about "protecting the flora balance."

Causes of Itching - Candidiasis, Bacterial Vaginosis, and Contact Dermatitis

Vaginal Candidiasis

Vaginal candidiasis occurs when Candida albicans (a fungus) that normally resides in the vagina overgrows. About 75% of women experience it at least once in their lifetime. Typical symptoms include intense itching, white cottage cheese-like discharge, and redness and swelling of the vulva. It commonly develops after antibiotic use, during pregnancy, with diabetes, or when immunity is compromised.

Bacterial Vaginosis

Bacterial vaginosis (BV) is a condition where Lactobacillus decreases and anaerobic bacteria such as Gardnerella vaginalis proliferate. Unlike candidiasis, itching is mild, and the hallmark is a fishy-smelling grayish-white discharge. Risk factors include vaginal douching (excessive bidet use), sexual intercourse with new partners, and smoking.

Contact Dermatitis

An often-overlooked cause of vulvar itching is contact dermatitis. Irritants include sanitary pad materials, residual detergent, surfactants in body wash, synthetic underwear fabrics, and prolonged use of panty liners. Simply identifying and removing the offending substance often resolves symptoms.

Causes of Odor and What Is Normal

What Normal Smells Like

A healthy vagina has a mild sour scent. This comes from lactic acid produced by Lactobacillus and is completely normal. Odor intensity varies with the menstrual cycle, diet, and physical activity. Discharge may increase and odor may change around ovulation. "Odorless" is not normal - a mild sour scent is actually a sign of health.

Signs of Abnormal Odor

A fishy smell is a classic symptom of bacterial vaginosis. Foul-smelling discharge, green or yellow discharge, or frothy discharge may indicate trichomoniasis or a sexually transmitted infection. If these symptoms are present, do not self-treat - see a gynecologist.

Over-Washing Is the Biggest Enemy - Actions That Destroy Vaginal Flora

The Harm of Vaginal Douching

Washing inside the vagina with water or a bidet flushes out Lactobacillus and destroys vaginal flora balance. Research shows that women who habitually douche have a 2 to 3 times higher risk of bacterial vaginosis. The vagina has a self-cleaning mechanism and does not need internal washing. Discharge is the result of vaginal self-cleansing - it is not "dirty."

Risks of Using Body Wash

Standard body washes have an alkaline pH of 9 to 10, which destroys the mildly acidic environment (pH 3.8 to 4.5) of the intimate area. Surfactants damage the skin barrier, causing dryness and itching. Fragrances and preservatives are also common irritants. Avoid applying body wash directly to the intimate area.

The Right Way to Wash

Gently washing the vulva with lukewarm water alone is sufficient. If you want to use a cleanser, choose a mildly acidic (pH 4 to 5) intimate wash specifically designed for the area. Wash only the external vulva (outer labia) - never insert fingers or cleansers into the vagina. Wash gently with foam rather than scrubbing, and rinse thoroughly. (Books on feminine care can help you learn proper intimate hygiene techniques)

How to Choose an Intimate Wash

Ingredients to Look For

The basics are: mildly acidic (pH 4 to 5), contains lactic acid (supports vaginal flora), and uses gentle surfactants (such as sodium lauroyl methyl alaninate). Products with moisturizing ingredients (glycerin, hyaluronic acid) help prevent post-wash dryness.

Ingredients to Avoid

Avoid fragrances, colorants, parabens, sodium lauryl sulfate (SLS), and alcohol, as these are common irritants. Many products labeled "for intimate use" still contain these ingredients. Always check the ingredient list.

Atrophic Vaginitis in Menopause - Effects of Estrogen Decline

What Is Atrophic Vaginitis

When estrogen drops sharply after menopause, the vaginal mucosa thins, loses elasticity, and becomes dry. This is atrophic vaginitis (GSM: Genitourinary Syndrome of Menopause). About 50% of postmenopausal women experience it, but many avoid seeking treatment due to embarrassment. Symptoms include vaginal dryness, itching, burning, painful intercourse, frequent urination, and recurrent urinary tract infections.

How Estrogen Decline Affects the Vagina

Estrogen promotes glycogen production in vaginal mucosa, providing nutrients for Lactobacillus. When estrogen declines, glycogen decreases, Lactobacillus diminishes, and vaginal pH rises (becomes alkaline). This disrupts vaginal flora balance and increases susceptibility to infections.

Treatment Options

Local estrogen therapy (vaginal tablets, creams, or rings) is the most effective treatment. It has minimal systemic effects and restores vaginal mucosal thickness and elasticity. When estrogen cannot be used, moisturizing gels and lubricants can alleviate symptoms. Ospemifene (a selective estrogen receptor modulator) is another option. If you have symptoms, consulting a gynecologist is strongly recommended.

Daily Care Habits

Choosing Underwear

Choose 100% cotton underwear with good breathability. Synthetic fabrics (polyester, nylon) trap moisture and promote bacterial and Candida growth. Prolonged wear of tight jeans or leggings also causes moisture buildup. Wearing loose underwear or going without at bedtime is one way to ensure ventilation.

Menstrual Product Choices

Change pads every 2 to 3 hours and avoid prolonged use. Cloth pads and menstrual cups cause less chemical irritation and suit those with sensitive skin. Constant use of panty liners causes moisture buildup, so use them only when needed.

Care After Antibiotic Use

Antibiotics kill Lactobacillus along with harmful bacteria, making candidiasis more likely after a course. During and after antibiotic use, support gut and vaginal flora recovery with probiotic supplements or yogurt. Vaginal probiotics (Lactobacillus-containing vaginal tablets) are also an option. (Books on women's health explain how to restore vaginal flora in detail)

Summary - Intimate Care Is About Protection

The essence of intimate care is protecting vaginal flora balance. Don't over-wash, don't douche, maintain an acidic environment, and ensure breathability - following these basics prevents most problems. If you notice abnormal odor, persistent itching, or changes in discharge, don't self-diagnose - seeing a gynecologist is the most reliable course of action.