Forceps-assisted delivery can sometimes place pressure on a newborn's facial nerve. This may cause temporary weakness on one side of the face. Most compression injuries improve, but persistent symptoms require medical evaluation. A facial nerve injury following forceps use does not automatically indicate that the instruments were used incorrectly.
How forceps delivery works
Forceps are medical instruments designed to assist certain vaginal deliveries.
They may be used when labor is prolonged, the baby needs to be delivered promptly, or other clinical circumstances make assistance appropriate.
The instruments are positioned around the baby's head to guide delivery.
Correct placement and controlled use are important for reducing injury risks.
Like other obstetric interventions, forceps delivery has potential benefits and complications.
In selected situations, it may be safer than delaying delivery or attempting another procedure.
Why the facial nerve may be vulnerable
The facial nerve passes close to the surface near the ear and jaw.
Pressure from a forceps blade can compress this nerve.
Compression may temporarily disrupt signals to the facial muscles.
As a result, one side of the baby's face may move less than the other.
The difference often becomes most visible when the baby cries.
In more significant injuries, eye closure and feeding movements may also be affected.
Signs of facial nerve compression after forceps use
Parents may notice that the baby's mouth moves unevenly.
One corner of the mouth may remain lower or less active.
The crease beside the nose may look flatter on the affected side.
Some newborns have trouble closing one eye.
These findings should be assessed by the newborn care team.
Facial bruising or forceps marks do not necessarily mean that the underlying nerve has been damaged.
Likewise, nerve weakness may occur without prominent external marks.
What doctors examine
The clinician reviews the delivery history and evaluates facial movement.
The examination includes the mouth, eyelids, and forehead.
Doctors may also assess feeding and eye protection needs.
The main goal is to distinguish temporary compression from a more serious nerve injury or congenital condition.
Most newborns do not require immediate advanced imaging.
Further testing may be considered when the findings are unusual or weakness persists.
Recovery after instrument-assisted delivery
Many pressure-related injuries improve within days or weeks.
Some take several months to resolve.
The outlook is less certain when the nerve has suffered substantial structural damage.
Follow-up helps establish whether facial movement is returning.
If the eyelid remains partly open, the medical team may recommend measures to protect the cornea.
Families should use eye drops, ointments, or eyelid protection only as directed by a clinician.
Did you know?
Facial nerve palsy can also occur after a delivery without forceps.
Pressure from the maternal pelvis or the baby's position may affect the same nerve.
This is why the delivery history matters, but it does not establish the cause by itself.
Common questions around forceps-related facial palsy
Can forceps cause permanent facial paralysis?
Severe injuries can produce lasting weakness, but many compression injuries resolve.
Are forceps always responsible when facial palsy appears after birth?
No. Other birth-related and congenital causes are possible.
Does forceps-related facial palsy mean malpractice occurred?
No. Whether care was negligent depends on the clinical circumstances and applicable standards.
