What is the male pill? In the past 5. 0 years, there have been few changes in male contraception compared with the range of options available to women. Today, the only contraceptive methods available to men are: condoms – a barrier form of contraception that stops sperm reaching and fertilising an egg vasectomy – a minor surgical procedure that stops sperm being ejaculated from the penis during sex (it is usually permanent) Some men use withdrawal to try to prevent pregnancy, when they pull their penis out of their partner's vagina before ejaculating. However, this is not a recommended method of contraception. Birth control, also known as contraception and fertility control, is a method or device used to prevent pregnancy. Planning, making available, and use of birth. The birth control pill is a popular option for women, and a similar drug could be available for men. What is the Birth Control Patch? The birth control patch is a thin plastic patch (1 3/4 inch square) placed directly on the skin of the woman. It is a hormonal method. How effective are birth control methods? The effectiveness of birth control methods is critically important for reducing the risk of unintended pregnancy. Possible Side Effects. The birth control patch is a safe and effective method of birth control. Most young women who use the patch have no side effects. Certain birth control methods contain man-made forms of hormones that are normally made in a woman's ovaries. These hormones are called estrogen and progestin. Promising Male Contraceptive Patch Could Soon Give Men the. Women have long had the honor of being the only ones with birth control pills. Sperm can be released from the penis before ejaculation. Ongoing research. There are many ongoing research projects into different methods of male contraception. Researchers are optimistic that a safe, effective and reversible method of male contraception will eventually become a reality, although this is still several years away. This process is triggered by the hormone testosterone. The goal of hormonal contraception research is to find a way of temporarily blocking the effects of testosterone so testicles stop producing healthy sperm cells. However, this needs to be achieved without lowering testosterone levels to such an extent that it triggers side effects, such as a loss of sexual desire. Synthetic testosterone and other steroid combinations. One way of doing this is by giving men a synthetic version of testosterone, together with a hormone called progestogen. Progestogens are synthetic versions of a female sex hormone often found in female hormonal contraceptives, such as the progestogen- only pill. This approach stops the testes producing testosterone which, in most cases, prevents normal sperm production. However, at the same time it keeps the amount of testosterone in the blood normal, preventing side effects. This is a very effective approach, but some men still carry on producing enough sperm to cause a pregnancy. The reason why this happens is unknown, but it may be that some men carry on producing enough testosterone to continue to stimulate some sperm production. Research is now focusing on different combinations of synthetic testosterone and progestogens. Several trials in different countries are looking at the effectiveness and long- term safety of hormonal contraceptives for men, including some phase III trials. Phase III trials are the last clinical trials carried out before a medicine is given a marketing licence. An important disadvantage of using synthetic testosterone is that sperm production is suppressed at different rates in men of different ethnic origins. These differences may be due to genetic, dietary or environmental factors, but the exact reasons are unknown. Understanding the reasons may lead to new ways of providing effective contraception for all men of diverse ethnic backgrounds. Non- hormonal contraception Many of the non- hormonal methods of contraception currently being studied involve the vas deferens. The vas deferens is the tube that sperm pass through on their way to the penis. This tube is cut during a vasectomy. RISUG and the IVD One promising avenue of research is a technique called reversible inhibition of sperm under guidance (RISUG). During this technique, a non- toxic synthetic chemical is injected into the vas deferens. The chemical reacts and blocks the vas deferens. It also kills sperm when they come into contact with it. The chemical is effective almost immediately after it is injected. The chemical stays in place until a man decides that he wants to have children. It can then be washed out using another injection which dissolves and flushes it out of the vas deferens. A variation of this technique is the intra- vas device (IVD). It involves injecting a . The IVD filters out the sperm as it passes through the vas deferens. Reasearch published in 2. It prevented the sperm cells from being launched during ejaculation. When the mice's sperm was used to artificially inseminate female mice, it resulted in pregnancies and healthy baby mice. If a way can be found to block these proteins in human males, this may take research a step closer to producing a male contraceptive pill. However, the research is in the very early stages and a male pill has not been developed. You can find out more about the research into proteins, mice and sperm. This is a long, coiled tube behind the testicles that allows sperm to mature normally, which is essential for normal fertility. Attempts have been made to interfere with the way the epididymis works and the way sperm matures inside the epididymis. However, so far neither approach has been successful.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
January 2017
Categories |