Skip to main content

What causes a massive blackhead to form?


A blackhead refers to something scientifically known as a 'comedone'.

Comedones are formed as a result of the blockade of the duct of something known as the ‘pilosebaceous unit'. This entity consists of a hair follicle and attached to it a structure which is known as the 'sebaceous gland.’ This gland is the oil producing factory of our skin and this oil production is in part controlled by androgens or the male hormones, which in a small quantity are also present in females making comedones and as a result acne vulgaris (pimples) a universal problem.

Now to understand this apparently complex description, just think of this as small oil wells lying beneath your skin and opening on to the surface via a pipe.

This oily substance is known as 'sebum’ and it contains cholesterol, wax, and wax esters as its main constituents. Its production can increase as a result of many factors :

Excess Androgens (Hormonal)

Use of certain cosmetics and topical medications (irritants,oily preparations)

Certain drugs and medications such as corticosteroids

Excess sebum production, in turn tends to irritate the epithelial lining of the duct causing a cellular hyperproliferation, and eventually increased proliferation of a commensal bacterium : Propionibacterium acnes, which is present normally in small quantities as part of the pilosebaceous unit.

All these factors tend to cause the blockade of the duct, the outflow pipe of our oil glands,causing it to swell up and thus forming a comedone.

In the initial stages, there is a partial blockade, such that air and therefore oxygen can reach the collected sebum, cellular debris and oxidise the surface of this collection causing it to appear ‘black’. This is what is commonly knownas a blackhead.

And when this blockade becomes complete, and the duct is completely obliterated, oxygen can no longer reach this collected material causing the formation of what is known as a whitehead or a closed comedone.

Hence, even though a blackhead appears 'black' on the surface, pressing it and discharging it's material leads to expression of primarily sebum which is yellowish to white and mixed with this cellular debris of the cells lining the duct and few bacteria, all in all producing an oily whitish yellow dirty looking material.

And here is a guide about how to remove blackhead.

Comments

Popular posts from this blog

Tips: homemade skincare products

From How to get rid of whiteheads , there are some tips to make natural mask. Here is a quick post with some of my tips to get your skin glowing! These products are all natural and quick and easy to make and include, you can use it after a facial steam at home . Body and face scrub Therapeutic bath oil Facial mask Optional: Use a body scrubber / loofah  Ingredients Note: These ingredients are enough to fill 250 ml jars. Bath oil : 250ml coconut milk, 4 tablespoons of almond oil, and eight sprigs of fresh mint, blended until smooth. Body and face scrub: Mix a cup of white or brown sugar with enough olive oil to make it into a paste. Face mask: Here are some options depending on your skin type. For acne or discoloration: Make a lemon and honey mask. Cut 10 lemons in half, squeeze the juice, and add a 10 teaspoons of honey. For oily skin: Blend 3 fully ripe bananas, 3 tablespoons of honey and juice from 3 oranges or lemons. For dry skin, also for anti-aging: Blend 3 rip...

Why Your Blackhead Pops Up in the Same Spot

No matter how many times you wash, scrub, or begrudgingly pop (eek!) that blackhead, which has so sweetly claimed real estate across your nose, it'll resurface weeks (maybe even days) later, as it if were an extra in The Walking Dead. What gives? Turns out, that zombie blemish isn't as uncommon as you'd think. "It is an interesting and common occurrence to have a pimple or blackhead pop up in the same spot," says Ava Shamban, a Los Angeles-based dermatologist. As for the cause of said alive-again blemish, well, experts aren't really sure — but they have some ideas. "One possible explanation is that there are a cluster of oil glands, or even a cluster of bacteria, that live in that location, which constantly cause inflammation," says Shamban. And for those blackheads that keep re-appearing on the nose? Shari Marchbein, a dermatologist and clinical assistant professor of dermatology at New York University School of Medicine, says they may not actu...

How do I fix pimples for good?

To treat a deep, painful pimple at home, Dr. Feely recommends the following tips: 1. DO wash your skin before treating it. Use a mild, fragrance-free cleanser, and be gentle to your skin while washing. 2. DO apply ice to reduce pain and swelling. As soon as you notice the blemish, wrap an ice cube in a paper towel and apply it to the area for five to 10 minutes. Repeat this two more times, with 10-minute breaks between icing. 3. DO apply a product that contains 2 percent benzoyl peroxide to the pimple. Available at your local drugstore, this treatment will help kill the bacteria that causes acne. Make sure you apply a very thin layer, as using too much can irritate your skin. While using this product, keep in mind that benzoyl peroxide can bleach fabrics. Avoid letting the medication come into contact with your clothing, and consider using white sheets and towels while using it. 4. DO apply a warm compress once a whitehead begins to form. To make a warm compress, soak a cl...