When Lucas contracted scarlet fever in 2025, his family had no idea that the illness would trigger a dramatic and terrifying transformation. Within weeks, the once happy and sociable boy became anxious, violent, and plagued by suicidal thoughts. Now 10 years old, Lucas has been housebound for six months, too frightened to leave his home in Bristol.

Lucas is one of a growing number of children diagnosed with Paediatric Acute-onset Neuropsychiatric Disorders Associated with Streptococcal infections (PANDAS), a condition that remains largely unrecognised by many frontline medical professionals. PANDAS is believed to result from a misguided immune response to a streptococcal infection, leading to severe psychiatric symptoms such as obsessive-compulsive disorder (OCD), tics, anxiety, and aggression.

A Family's Nightmare

Lucas's mother, Laura Sharp, described the rapid decline. "He changed in the space of a few weeks. My son was out of school. He was violent, he was aggressive, he was a danger to himself. We didn't know what to do." The situation was compounded by the fact that Lucas's GP failed to diagnose the condition, forcing the family to spend thousands of pounds on a private paediatric neurologist. Sharp revealed that her son had experienced "suicidal ideation" over the past year, a symptom shared by many children with PANDAS.

Lucas has now been referred to a specialist at Bristol Children's Hospital, but Sharp said the toll on the family has been "horrific".

Lack of Awareness Among Clinicians

PANS PANDAS UK, a charity supporting children with PANDAS and the related Paediatric Acute-onset Neuropsychiatric Syndrome (PANS), acknowledges that awareness among grassroots medical professionals is "very poor", although there is now support at higher levels of NHS England. CEO Vicky Burford said clinical guidelines are being developed by the Royal College of Paediatrics and other organisations and are expected to be published within six months.

NHS England stated that while there is currently no agreed medical definition of the conditions or how best to treat them, a national steering group is working to help clinicians better understand PANS and PANDAS and to support affected children and families.

Another Child, Another Struggle

Eleven-year-old Frank from Clevedon in North Somerset experienced a similar sudden change after a severe streptococcal infection in 2025. His mother, Minnie Coxwell-Crosse, said his behaviour became so extreme that he had to be taken out of school. "He would be hiding under a table, quaking and shivering or having to be manhandled by his teachers out of the playground because he was trying to escape from the school gates," she recalled.

Frank's GP had never heard of the condition, and the family ended up paying a private specialist for a diagnosis. He has finally been referred to a paediatric neurologist at Bristol Children's Hospital, but Coxwell-Crosse believes more must be done to educate clinicians. "I miss Frank's vivacious happiness. I don't want a child that is so broken and lost - it's just devastating," she said. "The really cruel thing about this disease is that it's invisible to the medical profession."

In a diary entry after his diagnosis, Frank wrote: "Since PANDAS started I've lost the real Frank. I feel like I don't have any friends and my family stopped loving me."

Coxwell-Crosse is now fighting for a specialist school place for Frank, who has been out of the classroom for over a year, a situation that has "resulted in his dark thoughts and suicide ideation coming back".

Not an Isolated Case

Gemma from Bristol shared a similar story. Her 11-year-old son changed overnight after a streptococcal infection four years ago. "He had frequent urination, huge anxiety, OCD and a tic," she said. "We had this child who was totally healthy, happy, sociable, with 100% attendance in school, to overnight completely changing and very violent at home." When she approached her GP about PANDAS, she was told it doesn't exist.

Parents express frustration over the lack of awareness and are calling for more action to prevent other families from enduring similar ordeals. Burford noted that while NHS England acknowledges the condition and supports the charity's work, "that isn't being reflected on the ground with GPs, paediatricians and tertiary consultants." She explained that a GP seeing a child with psychiatric symptoms would typically refer them to Child and Adolescent Mental Health Services (CAMHS) and pursue a mental health route, but with PANS or PANDAS, psychological support is needed alongside other medications to help the body heal.

The true number of PANDAS sufferers is unknown, but US figures suggest it may affect one in 200 children. Diagnosis is challenging because it shares symptoms with other conditions like OCD and ADHD, but the key differentiator is the sudden onset. As awareness grows and guidelines are developed, families hope for quicker recognition and better care for children like Lucas and Frank.