Y Zone Hygiene for Your Daughter After Her First Period

After overcoming the hurdle of how to give menstrual products to a daughter who has started her first period, a more difficult question arises. When itching, odor, changes in discharge, and a somewhat uncomfortable feeling occur, we usually react the same way: by washing more cleanly and more vigorously. We look for feminine washes, prepare panty liners, and manage ourselves more diligently than usual. However, strangely enough, symptoms like increased sensitivity, stinging, and itching often appear. To get straight to the point, Y-zone health is not about being cleaner or more diligent; it's about the right approach. This article summarizes the basics of hygiene management for adolescent daughters and all women.

In the clinic, almost no one who comes in with itching says, "I don't wash." On the contrary, many more ask, "I wash very thoroughly and many times, so why do I have an odor?" This happens not because of neglected hygiene management, but because of over-diligence.

When you wash more diligently when uncomfortable, good bacteria that protect our bodies are also washed away. This disrupts the balance and reduces the body's ability to protect itself, leading to more discomfort. Because it's more uncomfortable, people wash diligently again, and this vicious cycle repeats. Several studies point out that excessive washing can damage the microenvironment of the vulva, perineum, and vagina, causing irritation and exacerbating initial symptoms.

Common products like soap, shower gel, deodorant, bubble bath, wet wipes, and cleansers sometimes contain ingredients that irritate the skin. Some products can even cause allergies or worsen symptoms. In the same vein, some research suggests that people often make incorrect choices when selecting cleansers because they don't fully understand where their labia majora, labia minora, or vagina are located.

Therefore, for a daughter who has just started her period, the starting point is to first teach her where the vulva is and where the vagina is. This is because the methods for managing the vulva and the vagina are different. Many people think of the vulva and vagina as a single space, but in reality, they are distinct areas.

| Area | Characteristics | Management Approach | |---| | Vulva (outer skin) | Affected by sweat, moisture, friction, menstrual blood, pads, underwear | Mild, minimal management | | Vagina (inner) | Beneficial bacteria create an acidic environment to protect itself | Not routinely washed |

The vulva is the outer skin. It is affected by sweat, moisture, friction, menstrual heat, pads or panty liners, and underwear, so it requires management. On the other hand, the inside of the vagina is not a space to be routinely washed. Beneficial bacteria called lactobacilli live inside the vagina, creating an acidic environment to protect the body. If this difference is not understood, the direction of management can go awry. How to apply lotion to the vulva and care for the skin is detailed further in How to care for vulvar skin.

When there's an odor, an uncomfortable feeling, or discharge, some people wash the inside. Washing the inside thoroughly might feel refreshing for a moment. However, studies suggest that this can actually increase the risk of vaginitis. This is because it can increase vaginal bacteria and disrupt the balance.

So, you can tell your daughter this: there's no need to wash the inside just because there's an odor. While it might feel clean for a short time, that cleanliness can actually increase bacterial infections, and if an infection occurs, the odor might even worsen. The principle is to manage the outside mildly and leave the inside alone.

Managing the vulva is not difficult.

• Wash with a mild, unscented cleanser.
• Rinse with lukewarm water.
• Pat dry gently.
• Do not use soap or cleanser inside the vulva.

There's no need for it to smell good, to be squeaky clean, or to feel fresh all day long. A routine that isn't excessive is a good routine. These habits of reducing irritation can help prevent recurring discomfort and are also aligned with Lifestyle habits to prevent vaginitis.

When there's discharge or an uncomfortable feeling, people often reach for panty liners. Saying they are unconditionally bad might sound clear, but it's not accurate. Studies report that a clear negative association between panty liners and vaginal health has not been consistently confirmed. However, if there are recurrent candidal yeast infections, a slight association might exist.

This point is important: using panty liners does not necessarily mean you will get vaginitis. Conversely, it's also not appropriate to conclude that they have no effect on anyone. This is because vulvar contact dermatitis or irritation can actually occur due to product ingredients, friction, or moisture.

So, if your daughter asks, "Mom, can I use panty liners?", you can answer like this: "Liners aren't necessarily bad. But if you feel itchy, stinging, or notice changes in your skin, you might want to suspect the liner. Let's decide whether to use them based on how your body reacts." The criterion is not a fixed rule, but changes in your own body.

This is the most important part. Some people come in saying they've tried over-the-counter medications, changed cleansers, soaps, and liners, but the odor persists. They usually think, "Did I not clean enough?" and wash more vigorously. What to remember here is that the symptoms you perceive yourself and the actual cause do not always match.

Many guidelines clearly state that self-diagnosis is not recommended for common vaginitis. The reason is simple: symptoms like odor, itching, and changes in discharge are very similar and non-specific. It's difficult to accurately distinguish between bacterial vaginosis, candidiasis, trichomoniasis, or non-infectious irritation based solely on these symptoms. If you're curious about the criteria for distinguishing normal from abnormal discharge, I recommend reading Why you need to know about normal discharge first together.

Therefore, if discomfort recurs, instead of making your routine more complicated or trying to clean more thoroughly, it's better to go and identify the cause. Going to the hospital is not a defeat but the most accurate management. Tell your daughter to definitely let you know if she experiences any of the following signs:

• When there's a fishy odor.
• When the discharge color changes to yellow or green.
• When itching recurs for more than a few days.
• When there's stinging during urination or a feeling of incomplete emptying.
• When over-the-counter medications don't help much.

In the clinic, there are indeed many adolescents who come in with itching. During puberty, as pubic hair begins to grow, discharge can get tangled, and unfamiliarity with management can lead to more itching. Therefore, we recommend good vulvar moisturizing and urge them not to scratch, even if it's itchy. This is because scratching unconsciously during sleep can create tiny wounds, which can then become infected, sometimes leading to the vulva becoming red, swollen, or even adhering. If itching recurs to the point of disturbing sleep, it's a good idea to consider Vulvar itching.

There are also friends who come alone after starting their period and ask, "I'm a student, can I get hair removal?" They ask because a few strands of hair are uncomfortable, and truthfully, there's no harm in doing it. However, if it's not a one-time thing and is repeated multiple times, hair might not grow back well, so unless it's very uncomfortable, we don't necessarily recommend it at a young age.

Vulvar care and vaginal douching should be minimal. This one sentence can be said to be the entire content of today's discussion. To summarize again in five points: First, leave the inside of the vagina alone and there's no need to wash it. Second, manage the vulva minimally with only a mild, specialized vulvar cleanser or water. Third, do not use strong scents or irritating detergents if there's an odor. Fourth, use panty liners flexibly based on changes in your body. Fifth, if symptoms persist, do not just observe; seek the cause at the hospital. I hope this serves as an opportunity to review your own hygiene habits while informing your daughter who has just started her first period. If you have symptoms, consult a nearby gynecologist or chat comfortably about your symptoms.

Written by: Lee Dong-hee Chief Director · Obstetrician and Gynecologist · View Medical Team

This article is based on YouTube video content · First published April 14, 2026 · Last reviewed May 30, 2026

This article is intended to provide general health information and does not replace individual diagnosis or treatment. If you have symptoms, please consult through a medical examination.