London, March 3 (IANS): British researchers have provided new insights on what is considered "normal" for penis length and circumference in men.

David Veale from the King's College London and his colleague from the King's College Hospital NHS Foundation Trust set out to create a nomogram (graphical diagram) of male penis size measurements across all ages and races.

A search of the medical literature revealed 17 studies with up to 15,521 males who underwent penis size measurements by health professionals using a standard procedure.

The nomograms revealed that the average length of a flaccid penis was 9.16 cm, the average length of a flaccid stretched penis was 13.24 cm and the average length of an erect penis was 13.12 cm.

The average flaccid circumference was 9.31 cm and the average erect circumference was 11.66 cm.

There was a small correlation between erect length and height.

"We believe these graphs will help doctors reassure the large majority of men that the size of their penis is in the normal range," Veale noted.

"We will also use the graphs to examine the discrepancy between what a man believes to be their position on the graph and their actual position or what they think they should be," he continued.

Some men are concerned about their penis size and those who are preoccupied and severely distressed with the size of their penis may even be diagnosed with Body Dysmorphic Disorder.

There have been no formal systematic reviews of penile size measurements so far and no attempts to create a graphical diagram that depicts the distribution of the size of a flaccid or erect penis.

The new findings may be helpful when counselling men who are worried about their size or when investigating the relationship between condom failure and penile dimensions, the authors concluded.

The findings were detailed in the journal BJU International.