HSG (hysterosalpingogram)
An HSG is an X-ray test that uses a dye to check whether the fallopian tubes are open and the shape of the uterus is normal. It is a common first-line fertility test.
An HSG (hysterosalpingogram) is an X-ray of the uterus and fallopian tubes. A small amount of dye is passed through the cervix, and the X-ray shows whether the dye flows freely through the tubes, which suggests they are open, and whether the shape of the uterine cavity looks normal. It is a common early test when investigating infertility, because blocked tubes are a treatable cause. It is usually done in the first half of the cycle, after a period and before ovulation.
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