We report on a comparative study of semen donors at two London (LK) cl
inics which have different recruitment and payment policies. Results p
resented here include data on the demographic characteristics, motivat
ions, means of recruitment and attitudes towards payments of the donor
s, as well as their disclosure to others about the donation, Donors fr
om the two clinics were found to differ on the above points, Compariso
ns with other studies are made and implications for donor recruitment
are discussed.