It is not just females who feel unappealing at certain times of the month.

Males are just as likely to go through "fat days", feeling less confident about their look and suffering from low confidence.

As per a poll of over 5,000 males, 34% said feeling unattractive sheds their confidence to initiate sexual activity with their partner.

Aroun one in six males agree that low self esteem about their appearance impacts their confidence in bed and more than a quarter would consider losing weight to boost their performance.

To help deal with the issue, health company Pfizer, together with leading British health organizations, has introduced a service Man MOT (Monday Opportunity to Talk) for males who lack confidence or time to visit their GPs.

Tracey Cox of Man MOT said, "Men shouldn't be suffering in silence, there's lot of help out there, offering real solutions to improving sexual confidence and performance."

Males will have the chance to seek opinion on any health problems they may be worried or concerned about and browse various health publications online.

Berkeley Phillips, Medical Director at Pfizer said: "We know there are a lot of men out there avoiding their GP completely, leaving health issues untreated until they require immediate medical attention." (With Inputs from Agencies)