Dr. Chan Siew How is a Consultant General Surgeon with a special interest in colorectal conditions and minimally invasive surgery. He introduced Laser Hemorrhoidoplasty in Malaysia in 2015 and has since treated hemorrhoids and related colorectal problems using techniques designed for less pain and faster recovery.
His work spans early diagnosis, colonoscopy and screening, and surgical treatment. Patients are seen at KPJ Damansara Specialist Hospital, where consultations cover the full range of colorectal and general surgical care – from a first assessment of symptoms through to procedure and follow-up.
typically one night in hospital, discharged the next day
Professional background
Experience and training
Dr. Chan qualified in medicine at the University of Malaya and completed his Master of Surgery at the same institution. Over more than 20 years in practice, his clinical focus has settled on colorectal surgery – an area where many patients delay seeking help because symptoms feel private or embarrassing.
In 2015 he became one of the first surgeons in Malaysia to offer Laser Hemorrhoidoplasty, a technique that treats hemorrhoids through a small laser fibre rather than conventional excision. He continues to use both laser and established surgical methods, selecting the approach that suits each patient’s condition rather than applying one technique to all cases.
There’s nothing to feel embarrassed about
Colorectal problems are more common than most people think. Many patients delay care because the symptoms feel private – a consultation is confidential and handled without judgement.
Credentials
Education and qualifications
MBBS - University of Malaya
Master of Surgery (MS) - University of Malaya
20+ years of experience in general and colorectal surgery
Pioneer of Laser Hemorrhoidoplasty in Malaysia (since 2015)
What Dr. Chan treats
Areas of expertise
Laser hemorrhoid surgery (piles treatment)
Anal fissure and fistula management
Colonoscopy and colorectal cancer screening
Minimally invasive procedures for colorectal conditions
General surgery
These conditions are common and treatable. Many respond well to early, non-surgical measures; where a procedure is needed, minimally invasive and laser options can shorten recovery.
Approach to care
Good treatment starts with listening
Dr. Chan takes time to understand each patient’s symptoms and concerns before recommending a course of action, and explains the options – including when surgery is not required – in plain terms. Colorectal problems are common, and consultations are handled with discretion and without judgement. The aim at every stage, from first consultation to recovery, is a clear plan the patient understands and is comfortable with.
Hospital & practice
Where Dr. Chan practises
Dr. Chan consults and operates at KPJ Damansara Specialist Hospital (Level 1, Unit 1-12), Petaling Jaya. The hospital provides the theatre, endoscopy, and inpatient facilities used for colonoscopy, laser hemorrhoidoplasty, and other colorectal procedures.
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謝謝你陈绍豪医生的安排和指导,让我那么快康复。
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Choon Boon Yeoh
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Dr Justin SH Chan is the best, a noble Consultant General Surgeon with loving kindness and compassion.
He always walks the extra mile for his patients unconditionally.
God's blessings on you, Dr Chan.
I am grateful and thankful, as always.🙏🏻
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HingYin Koh
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Good doctor good coffee
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Andreas Liu
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Very good and patient doctor 👍👍👍
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Ng Minn er
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I was treated over a period of six months for a serious illness. I now have half yearly check- ups. Dr Chan and his team have always been professional, caring and diligently. He explains everything both before and after the procedures. I’ve been very happy with the care I have received, despite some significant challenges along the way.
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Brian Blackwell
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I had an excellent experience with Dr. Chan. They were thorough in diagnosing my condition and explained everything clearly, which made me feel confident in the treatment plan.
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esther wong
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I'm so glad I stumbled upon you, Dr Justin Chan while searching for a good doctor when I had some health issues. Your attentiveness, clear communication, and calm and gentle approach made such a difference in helping me process through this difficult time. I am so grateful too for your flexibility and care in making sure I could travel safely soon after, with the right precautions in place.
I've always believed doctors and nurses are the real superheroes in our society 🦸♂️ – and you prove me right :)
terima kasih. hope not to see you professionally anytime soon :)
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HYMN
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Dr Chan is very confident of his solution. As a patient i am very comforted that its going to be ok. The procedure seemed to lesser my incontinence too. I am back to work the next day .
If a colorectal symptom is affecting daily life, a consultation is a straightforward first step. Book online, call the clinic, or send a WhatsApp message, and the team will help you find a suitable time.