Why sperms are not detected as antigens by woman's  immune system ?
153459
Because sperm is not injected into the bloodstream. However, some women are allergic to a man's sperm and will have a reaction to it. Sort of like someone with a peanut allergy and them accidently touching one.
575328
myths such as this were common in medical literature 100 years ago.  now its thought that orgasm (which can be achieved via masturbation) can enhance the immune system.  These myths were rooted more in religious and cultural ideology than in any kind of scientific study.  \nhuman brains are hardwired to enjoy sex, alone or with others.  How else would have our species survived?
920712
The male reproductive organ produces sperms (male gametes).These are short lived,temperature sensitive,acid sensitive.The body temp.(normal)is 37^c.The sperms get destroyed at this temp.They require temp. 2^c less than body temp for survival and normal functioning.Hence, testes are located outside the body.
152678
Maybe, your immune system is weak. Immuno suppression may result in recurrent infections. See your doctor for further evaluation.
1058027
cytomegalovirus\nno it does not indicate pregnancy\nit shows if you have an antibody to cytomegalovirus a virus.
863041
Sperm production is not under your direct control, so unless you have some disease which causes low sperm production, watching gay movirs, or whatever other kinds of movies have NIOTHING to do with sperm count.
273498
You have asked several questions. An egg that is fertilized with sperm from an HIV+ father will probably have the disease because of the manner in which fertilzation in vitro is performed. Then the embryo (more likely, several) embryos are implanted into a woman. These embryos are implanted into the woman without separating them from seminal fluid including the HIV virus. I rather suspect, the woman has just been exposed to HIV and will become positive herself. It is barely possible the child will not develop the disease but what gain is that if the wife falls ill. \n\nThe next question deals with killing the HIV virus by freezing the semen and/or the embryo. That won't happen. Viruses are almost non-living molecules. They commandeer the DNA of cells and get cells to support them. Treatment by cooling, will not kill a virus. We used to "store" viruses by freezing them in liquid nitrogen. The sperm cell will die well before a virus can be killed. Cells are far more fragile than viruses.\n\nThe next issue is that females do not have sperms. They have eggs which require fertilization either inside or outside of their bodies and the embryo requires a womb for implantation so it can grow and become a developed organism.\n\nThe risks of such a procedure are clear to me. They are about the same as having unprotected sex with the woman. If both of you are agreeable to this, so be it. This is not my call but I did wish to explain a couple of things.
42048
This has a lot to do with how the auto-immune system works (and sometimes misfires).\n\nOne of the key functions of the immune system is to identify potentially threatening microbes and neutralize them before they cause disease.  The system has to learn each microbe, and it uses the microbe's chemical signature to identify it.\n\nHowever the immune system doesn't seem to be able to tell the difference between a microbe and the chemical signatures of other proteins.  So sometimes it "learns" that a non-threatening protein such as cedar pollen is a threat.\n\nOne good thing is that the immune system can "unlearn" allergens.  Regular exposure to very small amounts of an allergen can "teach" the immune system that a particular allergen is not a threat.\n\nThis is where local honey and allergy shots come in.  Allergy shots are usually tailored to the the individual's allergens.  Local honey contains pollens from the local flora and pollen from local flora are quite likely to be a problem for people suffering from airborne allergies.\n\nNote that local honey won't help with dust mites; nor will it help with pet allergies (unless you want to shake your cat over your honey toast in the morning!).
150424
Hello,pregnancy can happen even with low motility of sperms,IT though depends on the rate of normally motile sperms and their forward direction.\nYou can imagine this by knowing that only 200 sperms reach the tubes and cause fertilization,however,there are new studies that refer to the effect of foods rich in potasium on the mot. of sperms,its well believed that is acourse of these foods{as banana,cereals,milk,potato etc}of about 2 weeks is effective,do not forget the effect of sport in this field,medically,chorionic gonadotrphins or mesterolone can be used for this purpose,good luck.
1160470
I checked webmd and found this:\n\nSurvival of the Fittest: Fertilization\nOnce inside the vagina, the semen immediately coagulates, for reasons not yet understood. Because the vagina is acidic, only about 10% of the sperm will survive the first 10 minutes inside the vagina. After about 20 minutes, the semen becomes fluid again, enabling the surviving sperm to swim up the reproductive tract. Here's where the cervical mucus enters the picture. When a portion of the surviving sperm reach the cervical mucus, they will find tiny strands of protein within it that will carry them toward the uterus. This protein is present only in midcycle mucus, which has an egg-white consistency. The mucus is a sign that ovulation has just taken place or will be taking place shortly. The woman's egg remains viable for about 12-24 hours; the sperm can live up to 48-72 hours. This creates a reproductive window of roughly four days.\n\nMy advice is to have protected sex or abstain from sex altogether if you do not want to get pregnant or get std's.
865378
only sperm cell has flagellum.the sperm cell and egg cell r haploid in condition and r produced by the process called meiosis or reduction division
174034
Sex in and of itself, will do nothing, unless there is an STD involved.  Orgasms will boost your immunity to certain organisms, due to chemical reactions(refer to your orgasm 101 guide for the scientifics).  However, since STDs are obviously viruses, or bacterium, certain defences will be "tricked" chemically to be reduced.  If you are not sure of your OR your partners history, for a personal answer...protection IS the only way to negate the chance of a foreign microbe to enter the wrong place.  Of course without multiple protection techniques, 100% protection is always questionable.
677675
We can clone people without sperm but it's impossible to clone people without a human egg. We don't need men to live but we do need women.
31009
Both males and females are equally able to transmit the HIV virus. Vaginal fluids carry the virus in the same way the seminal fluids do. If you have any other questions, please do not hesitate to contact your local department of public health. Free testing is available, as well as risk reduction, and post-infection counseling.
1093671
Are you a young woman or a student? YES or NO answer only please! I appreciate you asking and your eagerness. \n\nSorry, but your question does not lend itself to a yes or no answer. the lymphatic system is part of the immune system but not the entire immune system.  And there is no such thing as "the Immunity System." Immune system, yes. But no Immunity System.
589887
for the record\nNo, sperm do not die when they hit the air. This is a common myth!\n\nSperm can usually live up to seven days when they're in the cervical mucus of a woman's vagina. However, when they're not being nourished and protected by cervical mucus, vaginal secretions, the warmth and moisture of a man's urethra and reproductive tract, or other warm and moist conditions, they die anywhere between a half an hour to four hours.
67534
Well sperm itself is just made up of living human tissue. Just a bunch of cells, noting more.\n\nNow what males ejaculate, the semen, is actually not that much sperm, but mostly just bodily fluid. That's why if a man gets a vasectamy (gets his tubes cut so he cant extrude sperm), he still ejaculates semen, and there isn't any visual difference.