Sudden Loss of Milestones — If a child who could previously crawl or stand suddenly loses that ability over a few weeks, indicating severe regression or contracture.

Visible Spinal Curving — Noticing that your child is chronically leaning to one side while seated in a wheelchair, which can lead to rapid, severe scoliosis.

Hip Dislocation Pain — Severe crying specifically when you try to change their diaper or separate their legs, strongly indicating a partially dislocated hip joint.

Inability to Straighten Joints — When an elbow, knee, or ankle becomes physically locked in a bent position (a fixed contracture) and cannot be pushed straight manually.

Severe Toe Walking — When the calf muscle becomes so tight that the child's heel physically cannot touch the ground anymore, eventually deforming the foot bones.

Frequent Unexplained Crying — Because children with severe CP may struggle to communicate, crying often indicates hidden joint pain or pressure sores from braces.