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A Vaginal bleeding at any stage of pregnancy should be taken seriously, Even if you think the bleeding is harmless, it should be brought to the attention of your doctor so that the cause can be identified and treatment was given. Severe bleeding in the early weeks may be a sign of miscarriage or after 24 weeks, of premature labour and you must seek medical advice at once,
Your doctor will ascertain where the bleeding is coming from. Apart from a threatened miscarriage, the most common sources of bleeding your cervix (the neck of the womb) and the placenta (see below and panel, right It is very unusual for any blood to come from your baby.
During pregnancy, the rise in oestrogen can cause the cervix to become slightly reddened causing an “erosion This is quite common and usually clears up after the birth. Occasionally, there may be light bleeding from your cervix, especially after intercourse. If you have had abnormal smears, bleeding from your cervix be more important and you should see your doctor.
A Bleeding from the placenta may be for two reasons; you may have a low-lying placenta, known as placenta praevia: or the placenta may have come away from the side of the womb known as placental abruption (see right). With enta praevia, the placenta is low, covering or partially over the cervix and this may prevent a normal vaginal delivery. Placental abruption is serious and may necessitate an immediate delivery.
Related: Thick white discharge and its causes