Medical articles from Dr Eugene Ong

do-i-need-a-biopsy-to-diagnose-my-skin-rash article image

07/04/2026

Consultant Dermatologist, Dermatology Surgeon and Dermatopathologist

Do I need a biopsy to diagnose my skin rash?

The vast majority of rashes are easy to diagnose based on clinical examination and history taking. Some more challenging rashes can be more difficult and require further thought, investigation, or follow-up, such as a biopsy. In this article, a consultant dermatologist explains when a biopsy is necessary for diagnosis, and what patients can expect with the procedure.

frequently-asked-questions-about-moles article image

03/03/2025

Dr Eugene Ong

Consultant Dermatologist, Dermatology Surgeon and Dermatopathologist

Frequently-asked questions about moles

Moles are common skin growths. They can appear anywhere on the body, and while most are harmless, some moles may need to be removed for medical or cosmetic reasons. We ask some frequently-asked questions about moles, including removal and whether they can grow back.

more-than-skin-deep-a-guide-to-skin-rash-diagnoses article image

27/09/2024

Dr Eugene Ong

Consultant Dermatologist, Dermatology Surgeon and Dermatopathologist

More than skin-deep: a guide to skin rash diagnoses

Most people have experienced a rash in one form or another – and there are many, many forms! When diagnosing and treating a rash, there are a lot of characteristics to take into account, like where the rash appears, the colour and the texture, and further information is needed such as allergies, recent activity, diet, and environment… it can be overwhelming to wade through all the possibilities. Luckily, celebrated consultant dermatologist Dr Eugene Ong shares his knowledge in this handy guide.