Abortion is a medical procedure which carries considerable risks, which increase as the pregnancy progresses, these risks include: 

• perforation of the uterus,
• persistent heavy bleeding, 
• damage to the cervix, 
• scarring of the uterine lining which can cause infertility, 
• infection or sepsis, 
• retained “products of conception” ie parts of the baby after an abortion which can lead to infection, 
• damage to other organs, and
• death. 

Sources:

“Termination of Pregnancy”, Royal Australian and New Zealand College of Obstetricians and Gynaecologists, 2005;

“Risks of Abortion Procedures”, Planned Parenthood of Australia; Maarit Niinimaki, M.D, “Immediate Complications after Medical Compared with Surgical Termination of Pregnancy, Obstetrics and Gynecology”, 2009 – via “Surgical Abortion, Procedures and Risks”, Real Choices Australia, April 2010 <http://realchoices.org.au/resources/surgical-abortion-procedures-and-risks/>.

“Possible Physical Side Effects After Abortion”, American Pregnancy Association: Promoting Pregnancy Wellness, 2019 <https://americanpregnancy.org/unplanned-pregnancy/abortion-side-effects/>.