treated with surgery to remove the abnormal tissue or unblock tubes. Fertility drugs or IVF may also be options. UTERUS PROBLEMS Beside endometriosis, there are other uterine problems that affect fertility. Some women suffer from fibroids (non-malignant tumours inside the uterus) or polyps (small growths in the endometrium). Both conditions can impede a fertilised egg being implanted in the uterus. Treatment options include the use of drugs to shrink the fibroids, or surgical removal. Once the problem is treated it may be possible for you to conceive in the normal way. CERVIX PROBLEMS Your cervix has an opening that allows sperm to pass into your uterus and fallopian tubes. Around the time of ovulation, your cervical mucus increases and is thin and rslippery' so sperm can swim through it - if your cervical mucus remains thick, however, it can stop sperm from getting through. Some women may also have an immune reaction to sperm; it's thought that about 2% of women produce antibodies that kill sperm cells. Besides failing to fall pregnant, you won't show any symptoms of having this reaction. If you suffer from these problems, your treatment may include intrauterine insemination (IUI) or IVF. IDIOPATHIC CAUSES If you don't suffer from any of these conditions and your partner has been given the all-clear in his fertility tests, the infertility may be due to some other factor, or you may be one of the 10% of couples investigated for infertility in which no cause can be found. This is