Scientific dogma has long asserted that females are born with their entire lifetime's supply of eggs, and once they're gone, they're gone. New findings suggest that in nematode worms, at least, this does not hold true. The study suggests how fertility in humans may be regenerated later in life.

Researchers believe they have developed one of the first forms of genetic therapy -- a therapy aimed at preventing serious diseases in unborn children. Specifically, the therapy would combat inherited diseases passed on from mothers to their children through mutated DNA in cell mitochondria.

Polycystic ovary syndrome, a common condition among women, can be relieved by the use of acupuncture and exercise, a new study by researchers in Sweden suggests.

Obese men are at increased risk for erectile dysfunction, likely caused by atherosclerosis-related hypertension and cardiovascular disease, as well as hormonal changes associated with obesity.

The common belief is that it won't hurt to try alternative fertility treatments before reverting to in vitro fertilization (IVF). But a new study finds that the success of IVF treatment is 30 percent lower among women who have used alternative medicine. The researchers included over 700 IVF users over a 12-month period. Women who had first tried a combination of alternative treatments, such as reflexology, acupuncture, or herbal and aromatherapy, had significantly lower pregnancy rates after IVF treatment.

A quick and accurate test for endometriosis that does not require surgery has been developed by researchers from Australia, Jordan and Belgium, according to new research. The test involves testing a biopsy sample taken from the endometrium for the presence of nerve fibers. It is nearly 100 percent accurate.

Choledocholithiasis is a serious problem in pregnancy, which can lead to life-threatening complications such as cholangitis and pancreatitis. Data on safety issues of endoscopic retrograde cholangiopancreatography with radiation in pregnancy are not conclusive for current clinical practice. A gastroenterology research group have presented their experience with non-radiation ERCP during pregnancy.

A new study finds that young women with early stage ovarian cancer can preserve future fertility by keeping at least one ovary or the uterus without increasing the risk of dying from the disease.

Medical researchers have identified the molecular basis of the lethal developmental disorder, hydrolethalus syndrome, and reveal that hydrolethalus syndrome actually belongs to the emerging class of human ciliopathy diseases.

Scientists have discovered a unique "DNA signature" in human sperm, which may act as a key that unlocks an egg's fertility and triggers new life.