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Medical dermatology focuses on the diagnosis and treatment of skin, hair, and nail conditions that affect overall skin health. These conditions may range from common concerns such as acne, eczema, and psoriasis to more complex disorders including autoimmune skin diseases and skin infections.
At TSN Dermatology Skin Specialist Clinic, patients are assessed by experienced dermatologists who provide evidence-based care tailored to each individual. Careful evaluation is important to accurately diagnose skin conditions and recommend treatments that are both safe and effective. Management may involve medications, procedures, or long-term care plans depending on the nature and severity of the condition.
















Senior Consultant Dermatologist
Bachelor of Medicine, Bachelor of Surgery (MBBS)
Member of the Royal College of Physicians (United Kingdom)
Master of Medicine (Internal Medicine)
Fellow of the Academy of Medicine, Singapore (Dermatology)
Dr Koh Hong Yi is a Ministry of Health-accredited dermatologist with over 20 years of experience in medical, surgical and aesthetic dermatology.
He trained in Singapore and the UK, and is particularly interested in Mohs micrographic surgery, dermatologic surgery, skin cancer care, and inflammatory skin diseases.
Prior to private practice, he founded the Mohs Surgery Service at Singapore General Hospital and served as consultant dermatologist and Adjunct Assistant Professor with Duke-NUS Medical School, contributing to clinical research and education.
About Dr Koh
