Sebum and skin cells clog the pores
When sebum increases and skin cells that should be shed accumulate inside the hair follicle, closed comedones or open comedones may form.
Causes of Acne: Sebum, clogged pores, bacteria, and inflammation act together
Acne is a process where sebum and shed skin cells block the hair follicle, allowing bacteria naturally present on the skin to multiply and cause inflammation. Hormonal changes such as puberty or pregnancy, family history, and certain medications can increase the risk, and skin or hair products that clog pores may also be related to the lesions. While diet or stress can be aggravating factors for some people, a single food or cleansing habit cannot be concluded as the sole cause of all acne.
Guide to Causes of Acne
Key points
- 1It is a multi-stage skin condition where sebum and dead skin cells block pores, followed by bacterial growth and inflammation.
- 2Check the relationship between hormonal changes, family history, certain medications, and pore-clogging products.
- 3Diet, stress, and friction can be aggravating factors, but they are not confirmed as the sole cause.
Distinguishing Causal Context
Review the location of lesions and factors immediately preceding the change
Check for patterns that repeat under the same conditions rather than a single isolated event; seek dermatological care for deep lesions or systemic changes.| Recurring Pattern | Possible Context | First Step |
|---|---|---|
| Blackheads, whiteheads, and red pimples appearing together | Clogged pores due to sebum and dead skin cells, and inflammation | Record the shape and location of lesions and the number of new lesions |
| Worsening around puberty, menstruation, or pregnancy | Effect of hormonal changes on sebaceous glands | Record the cycle, timing of worsening, and other bodily changes |
| Recurrence on the forehead or hairline after using new products | Effect of skin or hair products that clog pores | Check for 'oil-free' or 'non-comedogenic' labels and the area of contact |
| Sudden increase after starting a new prescription medication | Temporal relationship with certain medications | Do not discontinue medication arbitrarily; consult your prescriber |
| Increase in deep, painful nodules or remaining scars | Risk of severe inflammation and scarring | Prioritize diagnosis and treatment at a dermatology clinic |
What the clinic checks first
Does eating greasy food or not washing my face enough cause acne?
The cause of acne cannot be explained by a single food or a lack of cleanliness alone. The basic process involves pore blockage, sebum, bacteria, and inflammation; rubbing aggressively or squeezing lesions can actually make them worse.Understanding possible causes
Acne is not caused by dirty skin, but is a condition created by a combination of sebum, skin cells, bacteria, and inflammation within the hair follicle. Since hormones, family history, and medications can affect the risk of occurrence, and stress, friction, and certain diets can contribute to worsening, it is helpful to distinguish between the causes and the aggravating factors.
How it may develop
Bacteria increase within the clogged follicle
In follicles where sebum and cells have accumulated, bacteria naturally present on the skin can easily multiply, which may trigger an inflammatory response.
Inflammation creates red and painful lesions
If the wall of the clogged follicle is damaged, sebum, cells, and bacteria spread to the surrounding skin, leading to swollen, red, and painful pimples or deep lesions.
Factors to review
Hormonal changes
Hormonal changes, such as the increase in androgens during puberty or during pregnancy, can stimulate the sebaceous glands and affect the occurrence and worsening of acne.
Family history and certain medications
If close family members have acne, an individual may have a higher susceptibility. It may also be related to certain medications, including hormones, corticosteroids, and lithium.
Products, friction, and lifestyle irritants
Cosmetics or hair products that clog pores, pressure and friction from tight equipment, vigorous scrubbing, or squeezing lesions can worsen the condition in specific areas.
Useful context
- Date of first occurrence and location of lesions on the face, chest, or back
- Distribution of blackheads, whiteheads, red pimples, and deep nodules
- Hormonal changes such as puberty, menstruation, or pregnancy, and the timing of worsening
- Family history of acne and scarring
- Start date and dosage changes of new prescription medications or supplements
- Names of cosmetics, sunscreens, or hair products and the areas of contact
- Locations where masks, helmets, clothing, or bags repeatedly apply pressure
- Changes in diet, stress, or sleep and recurring patterns of worsening for the individual
More detail
Understanding the basic process starting inside the pore
It is not caused by dirty skin
The process begins when sebum and skin cells clump together inside the pore and cannot be discharged. Do not attempt to resolve this with aggressive cleansing or repeated scrubbing.
It is not just a problem of bacteria
Bacteria naturally living on the skin add to the inflammation within the environment created by blocked follicles and sebum. Sebum, pores, and inflammation must be viewed together.
Comedones and inflammatory lesions can coexist
Blocked pores may appear as blackheads or whiteheads, or they may turn into red, painful lesions as inflammation increases; therefore, it is important to record their appearance.
Checking the context of hormones, family history, and medications
Hormonal changes can increase sebum production
During periods of hormonal change, such as puberty and pregnancy, the sebaceous glands can be stimulated, causing lesions to start or worsen.
Family history is a clue to susceptibility
If close family members, such as parents, had acne, the likelihood of occurrence may be higher, but family history alone is not used to definitively diagnose current lesions.
Do not stop suspected medications on your own
Even if certain medications may be related to acne, do not arbitrarily discontinue important prescriptions; instead, inform the prescriber of the start date and the timing of any worsening symptoms.
Categorizing diet, stress, and products as aggravating factors
Specific foods are not defined as the cause for everyone
Research is ongoing regarding the possibility that certain diets aggravate acne, but cutting out a single food is not a substitute for diagnosis or treatment.
Stress can trigger existing acne
Acne may worsen during periods of high stress, but changes in sleep, products, and hormonal context should be checked simultaneously.
Baekrokdam consultations do not replace skin diagnoses
Deep nodules, rapid scarring, or other rashes require a dermatological evaluation first. After maintaining standard treatment, you may consult on the supportive role of Korean herbal medicine for recurring discomfort.
Acne cause consultation at Baekrokdam
We identify risks of deep inflammation and scarring first, then examine recurring patterns
If deep, painful nodules increase rapidly or if infection or severe drug reactions are suspected, a dermatology examination and standard treatment take priority over Korean herbal medicine treatment at Baekrokdam. For chronic or recurring acne, we verify the form of the lesions and the context of hormones, medications, and products while maintaining existing dermatological treatments. Only when worsening of lesions continues to recur alongside changes in sleep, digestion, or fatigue do we consult on the supportive scope of Korean herbal medicine treatment.First, we rule out deep nodules, scarring, and other rashes
We check the depth and pain of lesions, rapid scarring, redness, heat, and systemic symptoms to ensure necessary dermatological care is not delayed.
Aligning the timeline of hormones, products, and medications
We compare the location and onset date of lesions, hormonal changes, new products, and all medications within a single record.
Supporting only the chronic discomfort remaining after skin treatment
Korean herbal medicine does not replace acne diagnosis or standard treatment; actual changes are verified through photos and the number of new lesions.
If you prepare photos of the lesions, the onset date and location, hormonal changes, new skin or hair products, all prescription drugs and supplements, and descriptions of recurring worsening, we can discuss the specific scope of support available at Baekrokdam.
Frequently asked questions
What is the primary cause of acne?
It is a process where sebum and skin cells clog the pores, combined with bacteria and inflammation. Risk factors such as hormones, family history, medications, and products overlap differently for each person.
Will acne disappear if I stop eating chocolate or drinking milk?
While the link between certain diets and flare-ups is being researched, a single food is not the cause for everyone. Record recurring reactions specific to yourself, but do not use this as a substitute for dermatological treatment.
Does stress cause new acne?
Stress can worsen acne in some people, but it is not established as the sole cause. Hormonal changes, sleep, and product changes are also considered.
If I think it was caused by medication, can I stop taking it immediately?
Do not stop taking medication on your own. Show the prescriber the name of the medication, the start or change date, and photos of the lesions to discuss the correlation and safe alternatives.
Will it improve if I only eat foods that are good for acne?
A single food cannot cure acne, nor does everyone require the same diet. Acne results from a combination of factors, including sebum, dead skin cells, inflammation of the hair follicles, and hormones. Record whether lesions repeatedly worsen after eating certain foods, but prioritize standard dermatological treatment and a balanced diet over excessive restrictive dieting.
Sources
- NIAMS — AcneEvidence on pore clogging by sebum and skin cells, bacterial/inflammatory mechanisms, hormones, family history, certain medications, and aggravating factorsOpen source
- American Academy of Dermatology — Adult acneEvidence on hormonal fluctuations, stress, family history, skin and hair products, certain medications, and underlying medical conditionsOpen source
Content reviewed:
This information supports, but does not replace, diagnosis or treatment by a qualified healthcare professional.