He continued: “Finasteride lowers PSA, which means it is less likely to flag up issues such as prostate cancer.

“That is why it is really important to let your doctor know you are taking Finasteride, so this can be accounted for during any prostate tests.”

According to Mr Abbas, you should not stop taking the hair loss medication without talking to your doctor first, adding: “If you stop taking it, your hair loss will usually come back.”

What is PSA?
PSA is a protein produced by normal cells in the prostate and also by prostate cancer cells.

It liquefies the semen that carries sperm during ejaculation and it’s normal for men to have some PSA in their blood, and the amount raises slightly as you get older and as your prostate enlarges.

However, high PSA levels can be a sign of prostate cancer, although the risk is relatively low.

Research has shown around three in four men with a raised PSA level will not have cancer, and around one in seven men with prostate cancer would have a normal PSA result, according to the NHS.

Likewise, many Britons will experience symptoms that resemble prostate cancer, but it’s still important to get checked out.