Kate Beckinsale shared that she was hospitalized in a UK Mother’s Day tribute to her mom, Judy Loe.

The “Serendipity” star posted a slideshow on Instagram Monday that included photos of herself in a hospital bed, though she notably did not offer an explanation as to why she needed treatment.

“Happy birthday and UK Mother’s Day this last week to my incredible mother,” she captioned the post. “Thank you to those that love us and support us when it’s s–t and try to make sure there are some bits that aren’t.”

Kate Beckinsale in the hospital.
Kate Beckinsale was hospitalized for unknown reasons.Kate Beckinsale/Instagram

Kate Beckinsale in the hospital.

Beckinsale looked teary-eyed in photos she snapped from her hospital bed.Kate Beckinsale/Instagram

Kate Beckinsale in the hospital.
She also shared a photo of a friend with her at the hospital.
She continued, “And for looking after our dogs when we can’t , and lead us to remember happy things when we can’t. And turn up when we are sick and sit with us . . And send balloons and check in and pull us out of wells with love..”

Beckinsale, 50, thanked Loe, 77, for being so “loving” as she celebrated her mom’s “capacity for joy.”

“It is so inspiring and beautiful .Happy everything mama . Your fight for joy despite also welcoming tears is the experience of watching a warrior up close .I love you x,” she concluded her post.

Kate Beckinsale on a red carpet.
Beckinsale didn’t elaborate on why she needed treatment.Getty Images for Netflix

Kate Beckinsale's mom Judy Loe.
The actress thanked her mother for being there while she battled her health issues.Kate Beckinsale/Instagram
The photos showed Beckinsale wearing a blue hospital gown and a giant bow on her head as she snapped a selfie with tears in her eyes.

The slideshow also featured photos of Loe with a birthday cake as well as some content of her enjoying a glass of Champagne.