Oncologist Dr Eze Njoku urged Nigerians to use toilet paper with caution, pointing to studies confirming that chlorine, a chemical used in paper making, produces dangerous toxins such as dioxins and furans, adding that these toxins can build up in the body and cause severe health problems, including cancer, infertility, and liver disease.

He further said that recent studies have shown that many toilet papers contain a class of dangerous synthetic compounds known as PFAS. Exposure to PFAS has been linked to cancer, asthma, thyroid disease, liver damage and reproductive problems, he added, and toilet paper can also leak potentially dangerous compounds into wastewater systems, he added.

He said: "The method used to whiten toilet paper is called bleaching. Most businesses use this process, although the unbleached product is often rough to the touch. Chlorine gas leads to the production of dioxins, which are highly toxic and whose dangers include endocrine disruption, immune system damage, reproductive and developmental problems, and potential cancer.

Using a bidet or installing a small shower next to the toilet is the best choice for enhanced hygiene and environmental protection.