Cancer therapy can further impair the already poor semen quality in cancer
patients. This study evaluated the prefreeze and postthaw semen quality bef
ore treatment of patients with malignancies to examine the rationale for sp
erm banking for these men. Records of nine patients with different malignan
t tumors, who had been referred for sperm cryopreservation between 1982 and
1997, were reviewed and the results were compared with those of 50 normal
healthy donors. Patients did not differ from donors in age, ejaculate volum
e, or duration of sexual abstinence. The total motile sperm count (median a
nd interquartile range) was significantly different between patients and do
nors for prefreeze specimens (P = 0.026) and postthaw specimens (P = 0.008)
. Also, the percent motility was significantly lower in the patients as com
pared with the donors in prefreeze (P = 0.035) and postthaw specimens (P =
0.005). The percentage change in motility after thawing was also larger for
patient samples (-54% versus -47%, P= 0.39). Other sperm motion characteri
stics did not significantly differ between the two groups except for postth
aw curvilinear velocity (P=0.01). This study concludes that fresh and froze
n-thawed semen from patients with malignant tumors is poor in quality but i
s still adequate for assisted reproductive techniques. As cancer therapy ma
y further impair semen quality, patients should be offered the chance to ba
nk sperm before undergoing cancer therapy.