Talking about incontinence rather than ignoring the matter is arguably the best way of dealing with the issue, according to one expert, who has said that the subject need not be 'forbiddingly uncomfortable'.

Writing on empowher.com, Patricia Grace, founder and chief executive officer of Aging with Grace, stated that those who want to help someone who is incontinent should strive to be perceived as helpful.

She explained that careful thought needs to go into how exactly the matter will be raised and helpers should be clear about their role and ensure they are the person's supporter rather than a challenger.

Ms Grace also advised: "With incontinence, the caregiver's primary goal should be to get an assessment from a physician, so you can help the person deal with expert recommendations.

"Before deciding on your own that diapers are the solution, it's always wise to get medical clarification of the problem."

According to the NHS, urinary incontinence is thought to affect more than 50 million people in the developed world.