Appearance of Acne
Open Comedones
Related terms · Blackheads · Black comedones
Open comedones are acne where the follicle opening is open and sebum and dead skin cells accumulate, making the surface appear black. This black color is different from accumulated dirt.
Overview
Open comedones: please check these three things first
- Opencomedonescomedones are a type of acne where the follicle opening remains open, and sebum and dead skin cells accumulate, making the surface appear black. This black color is different from accumulated dirt.
- closed-opening Closed comedonescomedones, and sebaceous filaments on the nose may appear more evenly distributed.
- Do not extract them daily; please let us know if they turn into inflammation and the exfoliation ingredients you are currently using.
Meaning and Distinction
What are open comedones?
The contents appear dark as they come into contact with air, and they are common on the nose, forehead, and chin. Open comedones occur when the follicle opening remains open and Sebumsebum and dead skin cells accumulate, making the surface appear black. This black color is different from accumulated dirt.
- Easily confused terms
- They are different from closed comedones (where the opening is closed), and sebaceous filaments on the nose may appear more evenly distributed.
- Why this is checked during medical evaluation
- This is checked when determining the balance between comedone treatment and irritation management, rather than relying on harsh cleansing.
- Information to prepare for your visit
- Do not extract them daily; please let us know if they turn into inflammation and the exfoliating ingredients you are currently using.
More details
Connecting open comedones to my symptoms
The black color is not dirt, but sebum and dead skin cells that have changed due to contact with air
Because the follicle opening is open in open comedones, the contents appear black. This is not dirt that can be removed by scrubbing hard; severe irritation may only increase redness.
If they recur even after extraction, we examine the process of how the blockage occurs
Even if the current blackheads are cleared, they can fill up again if sebum production and follicular keratinization continue. We record the rate of new formation and the response to topical treatments rather than just the frequency of extraction.
Frequently Asked Questions
Common questions when looking into open comedones
Is a diagnosis determined by the term 'open comedones' alone?
They are different from closed comedones (where the opening is closed), and sebaceous filaments on the nose may appear more evenly distributed.
What should I note down before my appointment regarding open comedones?
This is checked when determining the balance between comedone treatment and irritation management, rather than relying on harsh cleansing. Do not extract them daily; please let us know if they turn into inflammation and the exfoliating ingredients you are currently using.
Acne Glossary
Compare similar terms here
You can check simple definitions before proceeding to detailed explanations.Read More
Check guides where this term is used
- Condition GuideClosed comedonesThe focus of treating closed comedones is topical medication to reduce pore blockage of closed and open comedones, along with low-irritation skin care. Topical retinoids, benzoyl peroxide, or azelaic acid are selected based on skin condition and possibility of pregnancy; since these typically take several weeks, initial irritation and the number of new acne lesions are recorded. Do not squeeze by hand or repeatedly use antibiotics alone.→
- Condition GuideAcneAcne begins with follicular keratinization, where dead skin cells at the opening of the follicle tangle with sebum and block it, and the acne-causing bacteria naturally living on the skin contribute to inflammation. Hormonal changes such as puberty or pregnancy, family history, and certain medications can increase the risk, and skin or hair products that block pores may also be related to acne. Diet or stress can be aggravating factors for some people, but a single food or cleansing habit cannot be concluded as the sole cause of all acne.→
- Medical Evaluation GuideWhat should I check first when acne suddenly increases?Do not view a sudden increase in acne as all being the same type; categorize them into closed comedones, red pimples, pus-filled acne, and deep, painful nodules. Also note the date you started new medications or cosmetics, and changes in menstruation, sleep, or stress. If deep nodules increase rapidly or if the face swells and develops a fever, you must seek medical evaluation rather than just recording symptoms and waiting.→
- Medical Evaluation GuideAre whiteheads, red bumps, pustules, and deep nodules all the same type of acne?→
Evidence and Update Information
The following materials were referenced to verify the basis and scope of the definitions and treatment descriptions.