masturbation

n.

手淫，自淫；自渎；

1. Can excessive masturbation affect adolescence long?
   青春期过度手淫会影响长个吗？
2. Wrapping embeds Duduoyin to make love or masturbation is caused.
   包皮嵌顿多因性交或手淫引起。

The role of masturbation in the treatment of orgasmic dysfunction
Solitary Sex: A Cultural History of Masturbation
Solitary sex: A cultural history of masturbation.
Human Sperm Competition: Copulation, Masturbation and Infidelity
Prevalence Of Masturbation And Associated Factors In A British National Probability Survey
Cardiovascular and endocrine alterations after masturbation-induced orgasm in women
Human sperm competition: ejaculate adjustment by males and the function of masturbation
Human sperm competition: ejaculate adjustment by males and the function of masturbation (1993)
Orgasmic reconditioning: Changing sexual object choice through controlling masturbation fantasies.
The post-orgasmic prolactin increase following intercourse is greater than following masturbation and suggests greater satiety