Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Seek emergency care for possible shunt blockage, infection, or dangerous pressure in the brain.
Warning signs can include:
Contact the usual care team promptly for new leg weakness, loss of skills, back or leg pain, a change in walking, or worsening bladder or bowel control.
These can be signs of spinal cord tethering or another neurological problem.
Fever with urinary symptoms, back pain, vomiting, or marked unwellness needs prompt assessment.
Seek urgent care for a deep skin wound, spreading redness, blackened skin, or an injury over a numb area that cannot be properly assessed.
Do not wait for a routine visit if symptoms are sudden or rapidly worsening.
Routine appointments are appropriate for stable equipment needs, constipation, minor skin concerns, school support, or gradual changes in mobility.
The article also says
An uncovered spinal sac in a newborn requires immediate specialist care.
Do not press on it or attempt to clean or cover it with household materials unless a medical team gives instructions.
Every sign above is quoted from the sofidex article on Myelomeningocele. If you are not sure, err upward — it is always reasonable to be checked.