What are the risks associated with c-sections?

Generally low risk: In general the chance of any complication is low. The risks during the surgery are infection, bleeding, anesthetic complication, injury to the uterus, bladder or other internal organs. The risk for future pregnancies include scar tissue formation, uterine rupture during labor and placenta accrete (where the placenta grows into the outer muscular layer of the uterus).

Same as delivery: Bleeding and infection are major risks and of course there are other risks. However, complication rates are generally low for cesareans (and for vaginal deliveries.