Yes, there are several teratogens that can cause birth defects through male exposure. There is documented evidence that exposure to Agent Orange that was used during the Vietnam War has caused birth defects in first and second generation births. Additionally, radiation can lead to issues for many generations afterward. There are some viruses that are mutagenic and can cause defects in progeny as well.
why do you wanna know if it's just the male's that cause birth defects? Birth defects i think occur at random, boy or girl
if the male is a crack addict can the sperm cause the baby to be a crack baby
Age. The older the male, the more likely that he will have spermatozoa, or sperm, that may result in birth defects if he makes a baby.Some may disagree, but the above comes from a recently published study on the causes of autism.
The manufactured sperm may have more genetic defects than a natural male sperm. Of course, natural sperm has its own defects, eg. infertility, genetic illnesses.
Actually, males have more birth defects that females. World wide, per 1 female that has a birth defect, 150 males have either died or are suffering from a birth defect.
None. Male masturbation does not cause the man harm nor does it cause birth defects if he fathers a child. These ideas are myths.
Bromine vapors are known to reduce male sperm count, causes malformed sperm resulting in birth defects and causes male infertility and of course Bromine also burns your skin and should never be near it.
Men continue to produce viable sperm longer than women continue to produce viable eggs. Risks of birth defects increase with male age, however.
Finax (finasteride) has the potental to cause birth defects only if a pregnant woman comes in contact with it. I.e takes a tablet or touches a broken tablet. not if a female becomes pregnant to a male who is taking finasteride. However many men decide to discontinue taking the medication whilst trying for a baby.
Generally, yes. Breeding at that age will almost definitely cause you to have a litter that is smaller in size and there's an increased risk of birth defects.
No, it is a natural process that all male animals do.
It is actually not 50% but generally a bit more at approximately 53% of males are conceived as the male sperm is faster than the female sperm. The mortality for males are higher however either in utero or before birth so the male to female ratio at birth is 50%
Sperm develops in the testicles within the system of tubes called seminiferous tubules. At birth those tubules inside the testicles contain simple cells, then when puberty arrives the male testosterone and other hormones cause the cells to transform into sperm cells.