Archives of Sexual Behavior, VoL 15, No. 2, 1986
"Estrogen therapy reduced testicular volume by approximately 25% (p < 0.05, by paired t test), generally within the first year of treatment."
"Neither body weight nor penis length were changed"
"The appearance of the male genitalia is not changed greatly by estrogen
therapy. The 25% reduction in testicular size can be appreciated clinically,
however, and some patients consider this reduction a sign of progress. Sup-
'pression of spontaneous erections has been reported in many patients, but
not all, and erections usually continue to occur during periods of sexual excitement.
Incomplete suppression of sexually induced erection is not surprising
since erections still occur in men with a concentration of testosterone below
100 ng/dl"
I am post-op, my T is very low (8 ng/dl), still get aroused and clitoral erections (engorgement).
Please note anti-androgens were not used and only estrogen, sometimes at very high doses. T levels got suppressed to less than 100 ng/dl, down to 30 ng/dl.