Boston’s hospitals dressed up newborns for Halloween. It did not disappoint.

Natalie in the Newborn Intensive Care Unit at Brigham and Women’s Hospital. Her costume was donated by Tiny Treats, an organization started by a Brigham NICU graduate family.

Charlotte in the Brigham and Women’s NICU. She is also wearing a costume donated by Tiny Treats.

The NICU staff at Floating Hospital for Children at Tufts Medical Center got into the Halloween spirit. Their theme was “You don’t have to bee big to bee strong!”

Anthony “AJ” Agudelo at Tufts Medical Center. He was born Oct. 5.

Melissa Almeida at Tufts Medical Center. She was born Oct. 5.

Isabel Barboza at Tufts Medical Center. She was born Oct. 5.

John Boncore at Tufts Medical Center. He was born Oct. 6.

Philip Boncore (John’s twin) at Tufts Medical Center. He was born Oct. 6.

Rayna and Anastayja Caldwell at Tufts Medical Center. They were born Oct. 18.

Kulsoom Khan at Tufts Medical Center. She was born Oct. 18.

Tucker and Carter Nadeau at Tufts Medical Center. They were born July 22.

NICU nurses Kristen Hill, Lindsay D’Angelo, Molly Simeone with twins Nyle and Nolan Yonjan. The Yonjan twins were both Oct. 25.

Aidan Pavao with a nurse at Tufts Medical Center. He was born Oct. 16.

Eliette Vilchez at Tufts Medical Center. She was born Oct. 27.

Tyra Tran at Tufts Medical Center. She was born Oct. 20.

JoAnn Loiselle with the Yonjan twins.

One of Newton-Wellesley Hospital’s newest pumpkins.

Another pumpkin at Newton-Wellesley Hospital.

A third Newton-Wellesley resident.