Human blastocysts should hatch from the shell and begin to implant 1-2 days after day 5 IVF blastocyst transfer. In a natural situation (not IVF), the blastocyst should hatch and implant at the same time-about 6 to 10 days after ovulation.
Enlargement of the prostate-- benign prostatic hyperplasia or BPH--is a common condition in older men that typically results in a narrowing of the urethra. BPH often makes urination difficult and sometimes painful. In addition, BPH and its associated treatments sometimes results in adverse sexual side effects.
As the prostate gland is located beneath the bladder, and the urethra is through prostate, when the prostate is enlarging and oppress the urethra, you may got urinary problems. There still remains dispute on the causes of prostate enlargement. There is one view that BPH can be affected or aroused by sexual intercourses. And there are researches indicates that men who have 2 times per week intercourses in their youth, and have one time per week, and one time every two to three week, have lower BPH morbidity. Also their prostate enlargement is slighter.