Does your face sometimes feel oily when you wake up in the morning? No matter how much you cleanse it, does it get oily again after a while? Or are you tired of the constant acne? Many people in our country actually have these problems. Our climate also affects this to some extent. But the main reason for many of these problems may be a tiny organ inside our skin. That's what we're talking about today - the sebaceous glands.
Simply put, what are these sebaceous glands?
Think of our skin as a big wall that protects our body. This wall needs to be kept healthy and moisturized at all times. There are small factories inside our skin that help with that job. We call those factories sebaceous glands .
Simply put, a sebaceous gland is a small organ in your skin that produces a special oil called sebum and releases it onto the surface of your skin. This oil, called sebum, is what gives our skin a protective coating and helps it retain moisture. Many of the sebaceous glands in your skin are directly connected to your hair follicles, which are the tiny holes where hairs come out.
Are there two types of these glands?
Yes, there are two main types. But both of them work the same.
1. Sebaceous glands connected to hair follicles: The majority of glands in our body belong to this type.
2. Sebaceous glands that are not connected to hair follicles: These sometimes work in conjunction with our sweat glands. The sebum released from these glands comes directly to the surface of the skin, without going through a hair follicle.
Either way, the main function of both is to produce sebum and release it into the skin.
What is sebum? Why is it so important to us?
Sebum is an oily substance that our bodies produce naturally. It is mainly made up of a combination of several types of fat molecules (lipids).
- Cholesterol
- Fatty acids
- Glycerides
- Squalene
- Types of wax
Although this sebum may seem like a nuisance to us, it actually does many important things for our body. It's like our skin's natural moisturizer.
Think of it like putting on a new pair of shoes and rubbing a little soap on your feet to prevent chafing. Similarly, sebum is a natural lubricant that reduces friction on our skin and protects it.
The main benefits we get from sebum:
- Protection from damage caused by friction: This sebum layer protects the skin from damage that can occur when things like clothing rub against the skin.
- Prevents moisture loss: It stops skin from drying out and hair from becoming lifeless and brittle.
- Protection from infections: Acts as a protective barrier against infections caused by certain types of bacteria and fungi.
- Body odor: It may seem surprising, but sebum also contributes to our natural body odor to some extent.
Where are these glands located in our body?
Sebaceous glands are located in the second layer of our skin, the dermis . There are thousands of them spread all over our bodies. You might be surprised to learn that there are only two places on our bodies where these glands are absent. These are the palms of our hands and the soles of our feet .
The largest number of sebaceous glands are found on our face and scalp . That's why our face and hair get oily quickly. In addition, glands that are not connected to hair follicles are found in areas such as our lips, inside our nose, on our penis, and on our labia.
Do their functions change throughout life?
Yes, definitely. As we age, the amount of sebum produced by the sebaceous glands changes.
- At birth: As soon as we are born, these glands become active and begin producing sebum.
- Childhood: Sebum production is very high throughout childhood.
- Puberty: This is the time when the biggest changes occur. Due to the influence of hormones, the body starts producing excessive sebum. This is the main reason for acne during adolescence.
- Adulthood: During adulthood, sebum production is controlled to a normal level.
- After age 70: As we age, sebum production gradually begins to decrease. That's why skin becomes very dry as we age.
Common diseases related to the sebaceous glands
Sometimes, when these glands malfunction, various medical conditions can occur. Let's look at a few of them.
| Illness | Simply put, this is what happens... |
|---|---|
| Acne | This is something that many people know. Acne occurs when the openings of hair follicles become clogged with sebum and dead skin cells. It is most commonly seen on the face, chest, shoulders, and upper back. |
| Sebaceous Hyperplasia | This is when the sebaceous glands become overactive, causing small, yellowish bumps to form on the skin's surface. This is not a harmful condition. |
| Sebaceous Cysts | A type of cyst that forms under the skin. These are filled with sebum fluid. They get their name because they form inside the sebaceous glands. |
| Sebaceous Carcinoma | This is a very rare type of cancer. It starts in the sebaceous glands. It most often appears as a yellow, hard lump on the eyelid. |
| Sebaceous Filaments | When sebum is produced excessively, the pores of the skin become enlarged and filled with sebum and dead cells. These may look like blackheads at first glance, but they are actually two. These are usually found around the nose. |
What are the common characteristics of these conditions?
Although the symptoms associated with each of these conditions vary, there are some common features that can be seen:
- Acne on the skin.
- Red or purple bumps on the skin.
- A hard lump or bump under the skin that can be moved and felt.
- Large pores filled with black, hard material (like blackheads).
- A white pus-filled lump or small fluid-filled blister at the site of the hair follicle.
- Excessive oiliness of the skin or hair.
If you have symptoms like these, the best thing to do is to see your doctor for advice .
How are these conditions diagnosed? What are the treatments?
Most of the time, your doctor can diagnose these conditions by examining your skin. However, sometimes, additional tests may be done to confirm the diagnosis or rule out other conditions.
- Skin Biopsy: A small piece of skin is taken and examined under a microscope.
- Pathology Examination: If something like a tumor is removed during surgery, it is examined under a microscope.
- Scans: An ultrasound or CT scan may be done to look at what's under the skin.
Treatment methods vary depending on the condition.
- Surgery for tumors or cancerous conditions.
- Oral or topical medications for acne.
- Laser or light therapy to restore damaged skin.
- Cryotherapy is a method of removing skin blemishes by freezing them with extreme cold, such as ice.
How to keep the sebaceous glands healthy?
There are some simple things we can do to keep our sebaceous glands healthy and prevent clogged hair follicles and glands. This is like a good daily habit.
- Use a gentle cleanser: Use a gentle, non-abrasive cleanser to cleanse your skin daily. Harsh soaps can strip your skin of its natural oils and make it even drier.
- Products containing salicylic acid: If you have acne problems, using a face wash or cream containing salicylic acid can help keep pores clear. However, it's best to consult a doctor before using these.
- Apply a moisturizer daily: You might be thinking, "My skin is oily anyway, so why do I need a moisturizer?" That's a misconception. Oily skin also needs moisture. Choose an oil-free moisturizer that suits your skin type.
- Don't forget sunscreen: Using sunscreen every time you go out is very important for skin health.
- Drink plenty of water: Drinking plenty of water throughout the day can help keep your skin hydrated from within.
The most important thing is to know exactly what works for your skin. Everyone's skin is different, so what works for a friend may not work for you.
Are sweat glands and sebaceous glands the same thing?
Yes. Although both of these are organs that protect our skin from drying out, they are different from each other.
- Sebaceous glands produce an oily substance called sebum .
- Sweat glands produce a watery substance called sweat .
- Sweat glands have separate ducts that carry sweat to the skin's surface. Sebum is released from the sebaceous glands, most often through hair follicles.
Simply put, oil comes out of one, and water (sweat) comes out of the other.
Take-Home Message
- Sebaceous glands are small organs that produce sebum, a natural oil that is essential for moisturizing and protecting our skin.
- Even though it may seem like a nuisance when your skin or hair is oily, it means that your sebaceous glands are working properly.
- It is common for conditions like acne to occur due to hormonal changes during puberty, leading to increased sebum production.
- If you notice an unusual lump on your skin, a long-lasting pimple, or any other change, don't panic or assume anything, but see a doctor immediately .
- Simple habits like keeping your skin clean, drinking plenty of water, and eating a balanced diet can help maintain the health of your sebaceous glands.
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