What is a concussion and why it took Tom Holland out of the new Spider-Man movie?

Tom Holland , 29, was hospitalized after an accident while filming 'Spider-Man: A New Day', as reported by British tabloid The Sun.

The actor reportedly suffered a head injury last Friday, 19, and is being treated for a concussion , according to the English outlet.

Although the tabloid uses the phrase "broke his head" to describe the incident, there are still no details about the severity of Holland's injury.

The accident didn't just affect the actor: a stunt double was also injured during filming and had to be taken to the hospital in an ambulance.

Due to issues on set, filming has been suspended at Leavesden Studios in Watford, England. The Sun notes that the shutdown will be indefinite.

Dominic Holland, the actor's father, confirmed that his son suffered an accident on set and said he will be away from filming "for a while."

So far, neither Tom Holland nor Sony have officially commented on the incident.

What is a concussion?

According to neurosurgeon Victor Hugo Espíndola , in an interview with IstoÉ Gente , concussion is a form of traumatic brain injury (TBI) that requires attention.

"It's a temporary brain dysfunction caused by a direct impact to the head, or by a sudden movement that causes sudden acceleration and deceleration of the brain within the cranium. This mechanism leads to temporary changes in neurological function, without necessarily resulting in a structural lesion visible on conventional imaging tests."

The impact generates diffuse mechanical stress on membranes and axons and an imbalance in brain metabolism, leaving the brain in a state of 'metabolic vulnerability,' which explains why symptoms can persist even after apparent clinical recovery,” he explains.

The most common symptoms include:

• Transient loss of consciousness (not always present)

• Mental confusion, amnesia or disorientation

• Headache, nausea and vomiting

• Visual disturbances, dizziness or imbalance

• Emotional and cognitive changes

The expert emphasizes that concussion can occur even without loss of consciousness, which means that many cases go unnoticed, especially in contact sports.

He emphasizes that the diagnosis is clinical and depends on attention to the trauma history and the progression of symptoms. "Imaging tests such as a cranial CT scan generally don't reveal any abnormalities and are only useful for ruling out more serious injuries, such as intracranial hematomas," he adds.

According to Espíndola, treatment is based on physical and cognitive rest, monitoring of warning signs such as excessive drowsiness or seizures, and a gradual return to activities.