Dr. Takahiro Miki
Profile
After graduating from Kawasaki Medical University, he practiced orthopedic surgery at university hospitals and general hospitals, gaining experience in a wide range of fields, including trauma, sports injuries, regenerative medicine, and ultrasound-guided treatments. He continued to hone his skills as a board-certified orthopedic surgeon recognized by the Japanese Orthopaedic Association and joined YAYOI CLINIC in 2025. Specializing in skin-rejuvenation injections, Botox, and ultrasound-guided fascial release, he provides aesthetic medical treatments tailored to each individual’s needs, addressing both beauty and health.
広島市中区の美容皮膚科でニキビ痕のケアをお考えの方へ。長引くニキビ、残ってしまった痕は多くの方にとって深刻な悩みですよね。ニキビ痕は日々のお手入れだけで対処するのが難しいため、専門的な知識と技術を持つクリニックでのケアが選択肢となります。
この記事では広島市中区の美容皮膚科ヤヨイクリニック（YAYOI CLINIC）が、ニキビ痕へのアプローチ法を解説します。ぜひ参考にしてください。
What You Need to Know First! Types of Acne Scars and the Basics of Treatment
In the following section, we’ll explain the main types of acne scars and their characteristics.
■ Acne scars that look like red or brown spots
The redness and brown spots that remain after acne has cleared up are typical acne scars, andKnown as post-inflammatory erythema or post-inflammatory hyperpigmentationものです。
赤みのある痕はダメージを受けた毛細血管が拡張や増殖をし、肌表面に透けて見えることが原因とされています。症状が軽度であれば数ヶ月～1年程度で軽快します。ただし、数ヶ月経っても変化がない場合は、皮膚科で治療を受けるのも選択肢の1つです。
茶色いシミは肌を守るために生成されたメラニン色素が、ターンオーバーの乱れで排出されず肌に留まることで生じると考えられています。If left untreated, it will require more time to treat, so consider seeking professional help early on.That's one way to go about it.
■Acne scars that leave craters or uneven skin texture
When inflammation spreads to the dermis or subcutaneous tissue, the tissue becomes damaged. Since the skin is unable to restore its original structure, it triggers an abnormal repair response, andCraters are caused by adhesions that pull the skin downward into the deeper layers.It is.
クレーターには、主に以下の3つのタイプがあります。
クレーターの主なタイプ
| type | feature |
| ice pick mold | This type features a narrow, deep indentation that looks as if it were made by a needle, with a diameter of 2 mm or less. |
| rolling type | It is about 5 mm in diameter and has a gently concave shape. |
| boxcar model | This type features a box-like shape with a flat bottom and vertical, steeply cut edges. |
These areDue to damage to the dermis and adhesions, it is difficult to treat this on your own.. Professional medical intervention is recommended.
■ Nodules and Keloid-Like Acne Scars
When inflammation reaches the dermis, collagen is produced in excess as part of the healing process, accumulating irregularly and causing the skin to bulge. This results in lumps or keloid-like acne scars. These may feel hard to the touch or appear red and swollen. Such symptoms includeBecause constitutional factors also play a role, it is difficult to manage this on your own.That's right. Be sure to seek a proper diagnosis from a medical professional as soon as possible.
3 Acne Scar Treatment Options Available at Cosmetic Dermatology Clinics in Naka Ward, Hiroshima City
Treatment for acne scars varies depending on the symptoms and may include methods such as laser therapy and subcision. Here, we’ll explain Tri-Fill Pro, subcision, and Potenza—some of the most common acne scar treatments available at cosmetic dermatology clinics in Naka Ward, Hiroshima City.
■TRI-FIL-PRO
![[Cosmetic Dermatology Clinic in Naka Ward, Hiroshima City] Yayoi Clinic Explains Acne Scar Treatment Methods](https://develop.yayoiclinic.jp/wp-content/uploads/2026/09/IMG_2819-1024x886-1.png)
Tri-Fil Pro uses a fine needle to inject carbon dioxide and medication,Accessing scar tissue that has hardened beneath the skinThis is a treatment method. By addressing adhesions in the subcutaneous connective tissue, it plumps up and lifts sunken skin, supporting the skin’s natural functions. As the tissue is separated,Collagen production in the skin is promoted, which is expected to improve skin firmness and smoothness.Yes, it is possible. A key feature of this procedure is that it allows for the injection of substances such as polynucleotides at the same time as the treatment.
| (data) item | Contents |
| Cost per session | サブシジョンショット（全顔・薬剤込み）
医師施術 121,000円（税込） ナース施術 88,000円（税込） |
| Recommended Number of Treatments | Once a month (1 course: about 3 times)
※治療回数には個人差があります |
| down time | Redness and bruising may last for a few hours to about one day; swelling may last for about 2 to 3 days; and bruises may appear as purple spots or turn yellow and may last for about 1 to 2 weeks. |
| risk | Swelling, redness, discomfort, needle marks, infection, pigmentation, scarring, allergies, heat, unpleasant sensations, etc. |
■ Subsession
![[Cosmetic Dermatology Clinic in Naka Ward, Hiroshima City] Yayoi Clinic Explains Acne Scar Treatment Methods](https://develop.yayoiclinic.jp/wp-content/uploads/2026/09/Rectangle-20749-3-1.jpg)
Subcision is performed using medical needles,Physically sever the tough fibrous tissue located beneath the skin治療法です。主にローリング型と呼ばれる幅広く波打つようにくぼんだクレーター状のニキビ痕に用いられます。
皮下で皮膚を引っ張っている線維バンドを切断することで、It is expected to help restore the skin's natural plumpness and smooth out unevenness.Can be done.
| (data) item | Contents |
| Cost per session | 注入あり（ジュベルック）1部位2㎝×2㎝ 11,000円（税込）
注入なし 22,000円（税込） |
| Approximate number of treatments | Once a month (1 course: 3-6 times)
*The interval between treatments varies depending on the amount of bleeding. |
| down time | Purple or yellow bruising may remain for about 2 to 3 weeks. You may apply foundation 6 hours after treatment. |
| risk | In people prone to keloids, the skin may occasionally thicken. |
■Potenza
![[Cosmetic Dermatology Clinic in Naka Ward, Hiroshima City] Yayoi Clinic Explains Acne Scar Treatment Methods](https://develop.yayoiclinic.jp/wp-content/uploads/2026/09/potenza-5-2.jpg)
Potenza is a treatment device that combines ultra-fine needles with RF (radiofrequency).By delivering RF energy directly from the needle tip to the dermis, this treatment supports the skin’s natural functions and promotes collagen production.。
クレーターや開いた毛穴のケアを期待でき、なめらかな肌を目指せる施術です。ドラッグデリバリーシステムにより、マックームなどの薬剤を肌の奥へ均一に浸透させることが期待できます。
| (data) item | Contents |
| Cost per session | 49,800 yen (tax included) |
| Recommended Number of Treatments | 3 times every 4-6 weeks ~ (every 2 weeks for melasma)
※治療回数は、治療内容によって異なります |
| down time | Redness, needle marks, and bruising lasting from a few hours to about a week |
| risk | Infection, hyperpigmentation, folliculitis, erythema, temporary onset or worsening of acne, bleeding, swelling, redness |
Yayoi Clinic, a cosmetic dermatology practice in Naka Ward, Hiroshima City, answers questions about acne scar treatment
In the following section, Yayoi Clinic, a cosmetic dermatology practice in Naka Ward, Hiroshima City, will address frequently asked questions about acne scar treatment.
■ Where are the best cosmetic dermatology clinics in Hiroshima City? How can I find a dermatology clinic that’s right for me?
Have you been searching for terms like “Recommended Dermatology Clinics in Hiroshima,” “Top Dermatologists in Hiroshima City,” or “Highly Rated Dermatologists in Hiroshima”? When choosing a dermatology clinic that’s right for you, consider factors such as convenience andThe key is to make sure the counseling is thorough.It is.
ニキビ痕のケアは複数回通うケースが多いため、駅からのアクセスや受付時間など、無理なく通える環境かどうかが大切になります。また、事前に不安や希望を聞き、肌の状態に合った提案をしてくれるクリニックを選ぶと納得して施術を受けられます。
■Are there any clinics in Hiroshima that offer acne treatment and acne scar care, and that are popular with men?
ニキビ痕治療でメンズにもおすすめのクリニックを広島でお探しではありませんか。男性の肌は皮脂分泌量が多く、ひげ剃りによる刺激もあるため、男性特有の肌悩みに配慮したケアが必要です。
最近では広島市でも男性の美容皮膚科利用者が増えており、男性が足を運びやすい落ち着いた空間づくりを意識したクリニックも多くあります。ヤヨイクリニックでも男性の肌悩みに寄り添ったカウンセリングを行っており、性別を問わず多くの方にご利用いただいています。
■Is acne scar treatment at a cosmetic dermatology clinic in Naka Ward, Hiroshima, covered by insurance?
Since the purpose of acne scar care is to improve the appearance of the skin, as a general rule,Not covered by public health insurance (private medical care)The first two are the following.
強い炎症を伴うニキビ治療は、症状や治療内容によって保険適用になる場合がありますが、治った後の痕へのアプローチは審美性を高める目的であることから自由診療と判断されます。また、皮膚科のシミ取りを保険適用でできる広島のクリニックをお探しの方もいらっしゃるかもしれませんが、美容目的の施術は自費での対応となるケースがほとんどです。ヤヨイクリニックで提供するすべての治療も全額自己負担となりますが、予算に合わせたプランをご提案いたします。
■ Conclusion.
広島市中区の美容皮膚科で受けられるニキビ痕治療について解説しました。ニキビ痕にはさまざまなタイプがあり、症状に適したアプローチが必要です。
長引く肌の悩みは、一人で抱え込まず専門家へ相談することが大切です。まずは美容皮膚科のカウンセリングを予約して、お気軽にご相談ください。健やかな肌を目指して、一歩を踏み出しましょう。
広島の美容皮膚科・美容内科・美容外科・アートメイク ヤヨイクリニック（YAYOI CLINIC）では、お肌、お体、お顔のお悩み別に治療法をご紹介しています。
皆さまにより良い選択肢をご提案できますよう一人ひとりのお肌の状態を見極め、治療期間やご予算、ダウンタイムの許容範囲などご希望に合わせた治療方針を立案していく考えです。
お悩みのある方は、まずはカウンセリングにお越しください。
■Related Articles Recommended for You
【施術の内容】トライフィルプロ
【施術回数の目安】1ヶ月に1回（1クール：3回程度）
*The number of treatments varies from person to person.
【費用】1回¥58,000～¥121,000
【副作用・リスク】腫れ、赤み、違和感、針跡、感染症、色素沈着、瘢痕形成、アレルギー、熱感、不愉快な感覚など
【使用機器について】
Trifill PRO treatments include procedures using domestically unapproved drugs or medical devices.
Drugs and medical devices used for treatment were imported from Japan under the judgment of our doctors.
There are no other domestically approved drugs with the same ingredients or performance.
Information on safety, etc. in other countries
Serious risks/side effects may not be evident.
About the Adverse Reactions Relief System for Drugs
In the unlikely event of serious side effects, the drug is not covered by the government's Adverse Drug Reactions Relief System.
【施術の内容】サブシジョン
【施術回数の目安】1ヶ月に1回（1クール：3～6回程度）
※施術間隔は出血具合によって異なります。
【費用】1回¥11,000～¥22,000
【副作用・リスク】
・ Individuals often experience internal bleeding.
In rare cases, the skin may thicken if the patient has a keloid constitution.
【使用機器について】
Subsidy treatment includes procedures using domestically unapproved drugs or medical devices.
Drugs and medical devices used for treatment were imported through a private importation procedure based on the judgment of a physician at our clinic.
There are no other domestically approved drugs with the same ingredients or performance.
Information on safety, etc. in other countries
Serious risks, side effects, etc. may not have been identified.
About the Adverse Reactions Relief System for Drugs
In the unlikely event of serious side effects, the drug is not covered by the government's Adverse Drug Reactions Relief System.
【施術の内容】ポテンツァ
【施術回数の目安】4～6週間おきに3回～（肝斑は2週間おき）
※施術回数は、施術内容によって異なります。
【費用】1回 ¥49,800～¥299,000※回数や内容によって異なります。
【施術期間の目安 】3～5ヶ月程度
【副作用・リスク】
Infection, hyperpigmentation, folliculitis, erythema
After the procedure, the pores may become blocked due to inflammation or swelling, and temporary acne may develop or worsen.
Depending on the treatment, bleeding may occur.
Swelling and redness may occur after the procedure.
Please note that effects may vary from person to person. Also, depending on the area to be treated, some patients may not achieve outstanding results.
【使用機器について】
Treatment of potenza includes procedures using domestically unapproved drugs or medical devices.
The medicines and medical devices used for treatment were imported from Jeisys Medical Inc. under the judgment of our doctors. Please refer to the following for information on drugs and medical devices that should be imported by individuals.
https://www.yakubutsu.mhlw.go.jp/individualimport/purchase/index.html
There are no other domestically approved drugs with the same ingredients or performance.
Information on safety, etc. in other countries
The following certifications have been obtained
-MFDS(2019.01)
About the Adverse Reactions Relief System for Drugs
In the unlikely event of serious side effects, the drug is not covered by the government's Adverse Drug Reactions Relief System.
