Thursday February 25th
I found this study:
Ultrasound sound effectson testicles, apparantly it renders your sperm inactive, you will get infertility
And there need to be done more studies to gauge the reversible effects of this temporary infertility.
Future studies will determine if our ultrasound treatment parameters result in a reversible loss of fertility as previously reported by Fahim. The treatment that was most effective at reducing epididymal sperm count (3 MHz, 2.2 W/cm2, two 15-minute treatments separated by two days with coupling medium temperature maintained at 37°C) represents an upper limit for applying ultrasound to the testes since thermal bio-effects were noted in some treated tubules. Results from Study 2 showed that relatively small changes in treatment conditions caused statistically significant changes in sperm count when assessed two weeks after treatment. Longer-term studies will be required to determine if those treatment conditions cause a progressive loss of spermatogenic cells that ultimately results in the depletion of epididymal sperm reserves. A major goal of our future studies will be to determine the "minimum effective dose" of ultrasound that induces a reversible loss of fertility.
In conclusion, our results demonstrate that a short exposure to therapeutic ultrasound is an effective method for depleting testes of spermatogenic cells and reducing epididymal sperm reserves within two weeks of treatment. The odds of conceiving decrease linearly when sperm concentrations are below 40 million sperm/ml [37] and effective contraception occurs when hormonal treatment or vasectomy cause sperm concentration to fall below 3 million sperm/ml [38, 39]. Our ability to use a widely available therapeutic ultrasound system to reduce motile sperm count below 5 million sperm per cauda epididymis just two weeks after treatment shows that therapeutic ultrasound holds great promise as the basis for a male contraceptive. Optimizing the treatment conditions, studying the safety of repeated use, the duration of the contraceptive effect and its reversibility and are the next required steps to establish whether therapeutic ultrasound can serve as the basis for a new, long term, reversible male contraceptive.
I found this study:
Ultrasound sound effectson testicles, apparantly it renders your sperm inactive, you will get infertility
And there need to be done more studies to gauge the reversible effects of this temporary infertility.
Future studies will determine if our ultrasound treatment parameters result in a reversible loss of fertility as previously reported by Fahim. The treatment that was most effective at reducing epididymal sperm count (3 MHz, 2.2 W/cm2, two 15-minute treatments separated by two days with coupling medium temperature maintained at 37°C) represents an upper limit for applying ultrasound to the testes since thermal bio-effects were noted in some treated tubules. Results from Study 2 showed that relatively small changes in treatment conditions caused statistically significant changes in sperm count when assessed two weeks after treatment. Longer-term studies will be required to determine if those treatment conditions cause a progressive loss of spermatogenic cells that ultimately results in the depletion of epididymal sperm reserves. A major goal of our future studies will be to determine the "minimum effective dose" of ultrasound that induces a reversible loss of fertility.
In conclusion, our results demonstrate that a short exposure to therapeutic ultrasound is an effective method for depleting testes of spermatogenic cells and reducing epididymal sperm reserves within two weeks of treatment. The odds of conceiving decrease linearly when sperm concentrations are below 40 million sperm/ml [37] and effective contraception occurs when hormonal treatment or vasectomy cause sperm concentration to fall below 3 million sperm/ml [38, 39]. Our ability to use a widely available therapeutic ultrasound system to reduce motile sperm count below 5 million sperm per cauda epididymis just two weeks after treatment shows that therapeutic ultrasound holds great promise as the basis for a male contraceptive. Optimizing the treatment conditions, studying the safety of repeated use, the duration of the contraceptive effect and its reversibility and are the next required steps to establish whether therapeutic ultrasound can serve as the basis for a new, long term, reversible male contraceptive.