Enquiries: 1300 11 BEAR

Grief Support: 1300 11 HOPE



Newsletter Subscription

Receive our newsletter and information on Bears Of Hope events Complete this form.

Social Media


Site Search

Causes of a Miscarriage

Early pregnancy loss usually occurs because the baby is not developing properly. Chromosome abnormalitiess are thought to be the most common cause of a miscarriage occurring in 50% of cases, however in many cases, a reason cannot simply be found. This lack of information can make dealing with your loss harder. The fact is many women who have a miscarriage are perfectly healthy, have done everything by the book, and yet still experience this devastation.

Some of the causes of a miscarriage are:

  • Genetic Abnormalities
  • Chromosome Abnormalities
  • Age of Mother
  • Mother having a low level of progestrone, which is needed to sustain the pregnancy
  • Smoking
  • Fibroids
  • Being overweight, having poorly controlled diabetes or a thyroid problem may increase your chances
  • Lifestyle conditions such as illicit drug use, excessive drinking, excessive caffeine intake
  • Weak cervix
  • Abnormalities of the uterus
  • Infections including listeriosis and toxoplasmosis. Sexually transmitted infections, such as syphilis, and conditions that affect your hormones, such as polycystic ovaries.
  • Sticky blood syndrome, or antiphospholipid syndrome (APS), which causes blood clots to form in blood vessels, are also known to cause recurrent miscarriage.
  • Lupus
  • Hormonal imbalances
  • Medical interventions to detect abnormalities in the baby. A CVS or an amniocentesis, can increase a woman's risk of miscarrying her baby.

If you do not know the reason for your loss/es it may be very easy for you to start blaming yourself, going over every little detail that may have caused you to miscarry. Guilt and blame are very common reactions however, it is unlikely that you caused your miscarriage.