What is it about there are drips in the road junction of the urine at the time of man excitement?

What is it about there are drips in the road junction of the urine at the time of man excitement?
The man, in the sexual activity, in entering excited one, after the penis erects, if the receiving is amazing continuously, one bulbourethral gland that lie behind the urethra and begin to secrete along urethral the intersection of sponge and urethral gland that body distribute. The amount of secreting liquid quantity has prominent human differences, generally only wet urethra and external urethral orifice, have 18% people will present ultra secretion of quantity probably, secrete liquid, can ooze out, drip, down from the penis external urethral orifice automatically. This kind secretes liquid appearance limpidly, transparently, there is certain viscidity, the person ignorant of the fact often thought it the seminal fluid by mistake, in fact it is not the real seminal fluid, seldom contains sperms. Bulbourethral gland and urethral gland secrete the liquid when the man is in excitement, there is any physiological function on earth, not very clear at present. By inference, it may be a kind of warming-up exercise before ejaculating, neutralized the function which washed the residual urine of urethra, otherwise some supersession product sperms to shooting in the urine will produce harmful function. In addition, the urethra still can lubricate the glans penis while secreting the liquid, insert to the penis in the vagina and offer certain help. But should notice, bulbourethral gland and urethral gland may be mix in the liquid with a few spermsed to secrete sometimes, even if is only the extremely specific sperm, if does not take contraceptive before sexual intercourse, also may cause the wife to be pregnant. So, the married couple while practising contraception can't adopt a casual attitude to this, should take reliable contraceptive in sexual intercourse at the beginning, could guarantee perfectly safely in this way.

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