Haematology 101

A number of changes to the mother’s circulation and blood clotting (coagulation) system occur during pregnancy, and in preparation for childbirth.  These changes include an increase in the blood volume and an increase in coagulation factors to prepare for anticipated blood loss at the time of delivery. These changes can affect the health of the mother, especially if the mother has a bleeding tendency (such as von Willebrand’s disease), clotting tendency (thrombophilia such as protein C deficiency), has had a previous blood clot (thrombosis) or any other blood condition (such as sickle cell disease). These conditions may also affect the baby, both before and after birth.

Special Pregnancy Program

Referrals »

Fetal Medicine: 416-586-4800 x 7756
Fax: 416-586-3216

Maternal Medicine: 416-586-4800 x 7000
Fax: 416-586-5109

Main clinic hours: Monday to Friday, 8am to 4pm

Prenatal Diagnosis & Medical Genetics

Referrals »

phone: 416-586-4800 x 4523
fax numbers:
416-586-4723 or 416-586-8384

Perinatal Mental Health

Referrals »

Phone: 416-586-4800 x 8325
Fax: 416-586-8596