Article published in Journal of the New Zealand Medical Association, September 12, 2003, Vol 116, No. 1181. Women reported that they are significantly more likely to experience vaginal dryness during sexual intercourse with circumcised men than with genitally intact men. The authors thought that the vaginal dryness becomes more apparent as women get older.

The authors concluded "Most likely, reported vaginal dryness and the related clinical designation female arousal disorder is but a normal female response to coitus with a man with an iatrogenically deficient penis." An iatrogenically deficient penis is one that has been circumcised.

Study published in BJUI (British Journal of Urology International), Volume 99, Issue 4, Pages 864-869 (March 2007). This is the Sorrells study. The Sorrels study is remarkable because it used objective measurements to determine fine-touch sensitivity of various parts of the intact penis and the circumcumcised penis, showing that circumcision removes the most sensitive parts of the penis.

Watch a YouTube video of Dr. Sorrells discussing the study and his results.

Circumstitions.com page with illustrations of an intact penis shown in various stages of being retracted.

The Functions of Foreskin (Prepuce) is an educational medical slideshow covering the development and functions of the prepuce (foreskin) from before birth through adulthood. There are no moving images in this documentary, only still pictures and diagrams from medical journals. The terminology used while professional is not incomprehensible to a lay audience.