Michael Strahan is sharing updates on his daughter Isbabella's health since she was diagnosed with a malignant brain tumor known as medulloblastoma last year.

Ever since Isabella was diagnosed with cancer, her dad has been by her side every step of the way. On Wednesday (Feb. 21), Michael discussed Isabella's condition on "Good Morning America" as she undergoes chemotherapy, as reported by ABC News.

While Michael said the 19-year-old has been "fighting through," the process continues to be challenging.

"The last three days have been a little rough because she had a fever that kind of comes and goes," he explained. "I had to take her to the hospital and thought she'd come home a few hours later. ... It's been three days, but hopefully she'll be home today."

He continued, "It is tough to see her go through it, but I know she's a tough young lady and she's going to make it through it."

Isabella is a twin with her sister Sophia, 19, whom Michael shares with wife Jean Mugglie. He is also dad to Michael Jr., 29, and Tanita, 32, from his first wife Wanda Hutchins. 

In January, Michael sat alongside Isabella as she opened up on "GMA" on how her life had changed since being diagnosed with medulloblastoma.

Shortly after entering her freshman year at the University of Southern California in Los Angeles in 2023, Isabella began experiencing symptoms, including headaches and nausea. 

Then, on Oct. 25, she awakened and realized she needed help.

"I woke up, probably at like, 1 p.m. I dreaded waking up. But I was throwing up blood," she recounted. "I was like, 'Hm, this probably isn't good.' So I texted [my sister], who then notified the whole family."

After seeking medical attention, doctors discovered a fast-growing 4-centimeter tumor, larger than a golf ball, had been growing on the back of her brain.

Medulloblastoma is a malignant pediatric brain tumor that arises in the cerebellum, a part of the brain located at the base of the skull, as cited by John Hopkins Medical. Treatment for this disease includes surgery, radiation, and chemotherapy. According to the Journal of Clinical Neuroscience, approximately 500 children are diagnosed with a type of cancer each year.