Surgeon: Sarawak records 30 pct of colorectal cancer cases among under-40s

MIRI (March 31): Data from Sarawak shows that 30 per cent of colorectal cancer cases occur among individuals below the age of 40, highlighting a worrying trend of early-onset cases in the state.

Colorectal surgeon at Miri Hospital Dr Kenneth Voon Kher Ti said that although the Ministry of Health has stated that the majority of male and female colorectal cancer patients are diagnosed at the age of 50 and above, Sarawak’s data presents a different picture.

“Screening is generally recommended for those aged between 50 and 75. However, we must bear in mind that Sarawak data shows that 30 per cent of colorectal cancer cases occur in those under 40,” he said.

Dr Voon was speaking at the Colorectal Cancer Awareness Campaign 2026 and the Colorectal Cancer Medication Services programme held at Miri Hospital on Tuesday.

He also revealed that his youngest patient was just 16 years old and that he was scheduled to operate on her soon.

“So, do not think that age is a form of protection,” he stressed.

He added that 70 per cent of colorectal cancer cases are detected at a late stage, namely stages three and four, and emphasised the importance of early detection, noting that treatment can begin immediately if cancer is identified early.

“If it is detected very early, we can remove it straight away during a colonoscopy, and the patient is treated. But if it is advanced, surgery is required, and patients may need to undergo chemotherapy or radiotherapy,” he said.

According to him, treatment and recovery become far more complicated when cancer is detected at an advanced stage.

Dr Voon also shared that many patients take time to fully come to terms with their diagnosis.

“It causes a lot of stress, affecting work and family life. I always tell my patients that the cancer treatment process is like going into a battle or a war. We are fighting against millions and millions of cancer cells,” he said.

Meanwhile, Miri Mayor Adam Yii Siew Sang, in a speech read by Cr Huang Hong Siong, said that early detection saves lives.

He noted that, as highlighted by Dr Voon, hospitals continue to record a significant number of new colorectal cancer cases each year.

“This reminds us that awareness and screening must be continuous efforts—not just for today, but throughout the years,” he said.

He also commended the doctors and specialists at Miri Hospital for their commitment to strengthening healthcare services, including the expansion of endoscopy units and the introduction of colorectal cancer medication services.

“This initiative will greatly support patients in their journey, because truly, no one fights cancer alone. Let us all take responsibility to be aware, to encourage screening, and to support one another,” he added.

Also present was Miri Hospital director Dr Jack Wong.