Cerebral palsy (CP) is a group of chronic disorders that affect the ability to control movement. It appears in the first few years of life. Generally, the nerve damage does not worsen over time, but the muscle, joint, and skeletal effects can get worse without treatment.
CP occurs due to damage to areas of the brain that direct movement. This damage interferes with the brain’s ability to control movement and posture. Other areas of the brain controlling thinking, speech, vision, or hearing may also be involved. CP may develop before, during, or after birth.
- Stroke or bleeding occurs in the baby’s brain during development or after birth
- Child sustains a head injury or brain infection
- There are abnormalities of the umbilical cord or placenta, or the placenta separates too early from the wall of the uterus
- Child does not get enough oxygen during or after birth
- Child has meningitis, encephalitis, seizures, or head injury
- Child has genetic/metabolic abnormalities
- Brain tissue that may not develop correctly during pregnancy—growing fetus may experience a lack of oxygen or nutrients
- Mother has rubella, toxoplasmosis, or cytomegalovirus while pregnant
- Mother and child’s blood types are not compatible causing severe jaundice
Factors that increase the risk of CP include:
- Premature birth
- Low birth weight
- Complicated or premature delivery
- Multiple births, such as twins or triplets
- Breech birth
- In vitro fertilization (IVF)—in part due to multiple births associated with IVF
- Infection or blood clotting problems during pregnancy
- Vaginal bleeding during pregnancy
- Family history of CP in parent or sibling
- Seizures or intellectual disability in the expectant mother
- Cord prolapse
- Low Apgar score—a rating of the child’s condition just after birth
- Vaginal or urinary tract infection during pregnancy
- High birth weight
- Type 1 diabetes in the expectant mother
- Obesity in the expectant mother
- Small head
Symptoms of CP vary widely. They may include difficulty with fine motor tasks like writing or using scissors, difficulty maintaining balance or walking, difficulty hearing or speaking, muscle tightness, and involuntary movements . The symptoms differ from person to person and may change over time.
CP first shows up in children aged 3 years or younger. Symptoms vary depending on what areas of the brain are affected. The problems can involve one side of the body (hemiplegia), the upper or lower body (diplegia), or both the upper and lower body on both sides (quadraplegia). Occasionally the face and neck are involved.
Disabilities can be mild to severe and vary from side to side and top to bottom. Although symptoms may change or progress slightly as the child grows older, the child’s condition is unlikely to worsen significantly, especially with treatment.
- Late to turn over, sit up, smile, or walk
- Trouble writing, buttoning a button, or other fine motor activities
- Difficulty walking or standing
- Tight, spastic muscles
- Weak muscles
- Poor balance
- Speech problems
- Unintentional body movements
- Difficulty swallowing
Some people with CP suffer from other medical disorders as well, including:
- Intellectual disability
- Learning disabilities
- Vision or hearing problems
- Decreased ability to feel pain or identify items by touch
- Problems with bowel and bladder control
- Breathing problems if food or water has accidentally entered the lungs
- Skin breakdown
- Low bone density and fractures
Doctors diagnose CP by testing motor skills and reflexes, looking into medical history, and using a variety of specialized tests.
You may have your brain’s electrical activity tested. This can be done with an Electroencephalogram (EEG).
You may have pictures taken of structures inside your head. This can be done with:
- CT scan
- MRI scan
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There is no treatment to cure CP. The brain damage cannot be corrected. Therapy aims to help the child reach his or her full potential. Children with CP grow to adulthood and may be able to work and live independently.
Several of the causes of CP that have been identified through research are preventable or treatable:
- Before getting pregnant, receive a vaccination for rubella.
- Seek early prenatal care.
- Receive testing for blood-type problems when pregnant. Get treatment if tests reveal incompatible blood types.
- Do not smoke , drink alcohol, or use drugs while pregnant.
- Put the baby in a child safety seat when in the car.
- Insist that the child wear a helmet when riding a bicycle.
- Seek help if you have, or want to, hurt the child.
- Keep poisons away from your child.
- Closely supervise bathing.
- Get your child immunized at the recommended time.
- If your baby becomes sick, call the doctor right away.
- For infants with brain injury at birth, hypothermia to lower body temperature can reduce the risk of tissue injury and of long-term problems.