Facts you should know about blackheads

  • Blackheadsare composed of dried sebum (oil) and dead skin cells.
  • Blackheadscan be present in a number of skin diseases.
  • Blackheadsare a prime component of teenageacne.
  • Blackheadremoval, unless performed by a professional, can produce significant skintrauma.

What are blackheads?

When the opening of a pore (hair follicleorifice) becomes occluded with sebum (oil) and dead skin cells, which then solidifies, the surface color often darkens. This is what is commonly called ablackhead. There are a number ofskin conditionsin which blackheads are an important component. The medical name of this structure is acomedo(plural:comedones).

Blackheads vs. whiteheads (pimples)

The black color of the surface of thecomedois thought to be due to the oxidation of the fat molecules in the sebum. If the surface of the comedo is covered by skin, this oxidation does not occur and the structure might be called by some "awhitehead" orpimple. This terminology could be confused with apustule, which may often occur at or near a follicular orifice.

What are causes and risk factors for blackheads?

Blackheads are most often recognized early in the course ofacne vulgaris, the inflammatory skin disease that affects the face, back, and chest of almost allteensas they go throughpuberty. They are thought to be the first sign of teenageacneand contain inflammatory substances the start theacneprocess. Elastotic degeneration of the skin affects sun-exposed areas, mostly on the face. The yellowish bumpy deposits of degenerated collagen are often accompanied by numerous blackheads. Chloracne is a condition caused by the absorption of dioxins, which are well known toxins often encountered as a byproduct in the manufacture of herbicides and defoliants.Comedonesare seen on the exposed skin in certain workers exposed to insoluble cutting oils in the metal machining industry. Certain topical hair products are known to induce blackheads on the adjacent skin, resulting in a condition called "pomadeacne."Makeupcosmeticsoccasionally may contain comedogenic substances. Certain anti-seizureand antipsychotic medications are thought to induce comedones. Certain rarebirthmarkscalled epithelialnevimay contain many blackheads. Sometimes a follicular orifice may become so dilated that after it becomes filled with dried sebum and skin it is termed a "giant pore of Winer."

There are many treatment options for blackhead removal.

Blackhead Symptoms & Signs

Blackheads are black or darkened areas of enlarged pores of the skin, often seen on the face in individuals affected by acne. Although they are very common in acne in teens, they may be associated with several other skin conditions as well. Blackheads are medically known as comedones (singular=comedo).

Blackheads may be associated with other skin lesions, including

  • whiteheads,
  • pimples,
  • skin redness, and
  • cysts.

A person affected by blackheads may have oily skin. Blackheads themselves do not cause significant symptoms and are not painful.

What are signs and symptoms of blackheads?

Blackhead rarely produce symptoms in themselves. Blackheads often are a sign of some of the previously listedskin conditions. Most of the time, these little black dots are of no significance aside from their cosmetic appearance, which is dramatically enhanced when using a magnifying mirror.

What types of specialists diagnose and treat blackheads?

You do not have to be a specialist to recognize a blackhead. Occasionally, a magnifying glass can be helpful. If they become a bothersome problem, a dermatologist may see you for treatment strategies. A dermatologist specializes in the treatment ofacneand other skin diseases and conditions.

How do health care professionals diagnose blackheads?

A health care professional, most often a dermatologist, will likely be able to explain which skin condition is responsible for producing the blackheads.

What are the types oftreatmentoptions for blackheadremoval?

If blackheads are a significant problem, it may be necessary to apply a prescription topical retinoid liketretinoin(Refissa,Atralin, Tretin-X) ortazarotene(Tazorac,Avage) to successfully get rid of the blackhead. Occasionally physicians may remove a blackhead. Most often this procedure is performed by a trained esthetician, askin carespecialist, who ought to be able to get rid of the blackhead without damaging the adjacent skin.

有补救措施,摆脱黑头吗?

Salicylic acid pads and/or 12%ammonium lactatelotion can be found in most pharmacies. They contain a chemical that exfoliates or loosens the blackhead so that it is possible to remove the blackhead when a person cleans his/her face. Comedo extractors can be purchased in most pharmacies and from Internet retailers. These small metallic devices have a small opening in a spatula-like tip, which when pressed over the blackhead produces enough side pressure on the skin to get rid of the oil plug from the blocked pore. This might not be the best option because it is possible that the untrained operator (the patient) will be too aggressive and produce more damage than benefit. Other options for comedo removal include vacuum suction and pore strips. There is little compelling evidence that blackhead removal produces any lasting benefit.

QUESTION

Acne is the result of an allergy.See Answer

Is it possible to prevent blackheads?

A person can prevent blackheads by treating the skin condition responsible for their presence. This is most effectively done by a dermatologist.

What is the prognosis for blackheads?

Since most blackheads are due toacne, which is limited topubertyin most people, it is likely that they ultimately will resolve spontaneously.

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References
Cunliffe, William J., D.B. Holland, and A. Jeremy. "Comedone Formation: Etiology, Clinical Presentation, and Treatment."Clinics in Dermatology22 (2004): 367-374.

Kim, S.J., et al. "The Effect of Physically Applied Alpha Hydroxyl Acid on the Skin Pore and Comedone."International Journal of Cosmetic Science37 (2015): 519-525.

United States. MedlinePlus. "Acne." Oct. 23, 2019. .
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