What causes cerebral palsy in children?

Various causes: It is often not known, but any injury to the brain, whether through an infection, or inflammation or low oxygen, or other, can potentially lead to cerebral palsy. Those insults often happen early on in life or even during fetal stages of life.

Hard to say: CP is caused by any injury to motor cortex in the brain from the point they become active in pregnancy to the 3rd birthday (research definition).These include loss of oxygen, blood flow, glucose (fuel), infection, trauma, etc. Studies show over half those with symptoms evident by age 7 had a normal pregnancy labor and delivery. The extent of impairment is quite variable.