Haemorrhage in early pregnancy

In early pregnancy, woman might get some light bleeding called 'spotting', when the foetus 
plants itself into the wall of uterus. This is also known as implantation bleeding and it often 
occurs after the missed period.

During the first three months of pregnancy, vaginal bleeding can be a sign of miscarriage or 
ectopic pregnancy (when the foetus starts to grow inside fallopian tubes instead of womb). 
Most miscarriages occur during the first 12 weeks of pregnancy and, most cannot be prevented. 

The causes of bleeding in early pregnancy are broadly divided into two groups.

• Those related to pregnant state :- This group relates to abortion (95%), ectopic pregnancy and implantation bleeding.
• Those associated with pregnant state :- The lesions are unrelated to pregnancy. Cervical lesions such as vascular erosion, polyp, ruptured varicose vein and malignancy are important causes.