There are several recommendations for dealing with fertility problems, and they vary from doctor to doctor. Couples used to be told to avoid sex for a few days to raise their chances of pregnancy; now a number of doctors advise that the best way to have a baby is to have sex more often.
Studies by Dr David Greening of Sydney IVF in Australia show that more frequent ejaculation may be the key. He studied 118 men whose sperm had more DNA damage than normal and asked them to ejaculate every day for seven days in a row. As a result, sperm DNA damage fell from 34% to 26%. Other studies have shown that a higher share of healthy sperm improves the chances of pregnancy.
The volume of semen fell in all participants, but sperm quality improved. So having sex every day for the week before ovulation may be a simple way to improve sperm quality and the chances of pregnancy. Sperm quality is also better in men who don't smoke, drink little alcohol, exercise and eat plenty of antioxidants.
Many researchers believe sperm kept in the body for a long time become damaged. Several have called the study promising, but it doesn't prove that frequent ejaculation raises the chance of pregnancy: Dr Greening is still analysing the pregnancy rates of the men who had daily sex.
Some researchers disagree with the study, pointing out that daily sex puts couples under extra pressure, and that men with a low sperm count may see it fall further with daily sex.
Male fertility starts to decline from around 25, as sperm numbers fall, and female fertility also declines with age, so couples should see a doctor to decide on the best possible treatment.
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