Woman Becomes a Mother at 44 Using Ovarian Tissue Frozen 25 Years Ago

A British woman has become a mother at the age of 44 after doctors used ovarian tissue that had been frozen for around 25 years, marking a remarkable milestone in fertility treatment.

A Decision Made Before Cancer Treatment

Kassandra Bacon was 18 and just days away from her 19th birthday when she was diagnosed with an aggressive form of Hodgkin lymphoma in 2001.

She needed high-dose chemotherapy that doctors warned could seriously damage her fertility. Before beginning treatment, Bacon underwent an experimental procedure at Addenbrooke’s Hospital in Cambridge to remove and freeze a small amount of ovarian tissue.

Years of Waiting

The tissue remained frozen while Bacon recovered from cancer and continued with her life. When she later wanted to have children, however, doctors found that her ovaries had been severely affected by her earlier treatment.

Finding a medical team willing and able to use tissue preserved under older regulations also proved difficult. The search continued for years before a specialist team agreed to perform the transplant.

The Frozen Tissue Was Used Again

In 2024, the preserved ovarian tissue was transplanted back into Bacon’s body. The tissue began functioning again, allowing doctors to attempt fertility treatment.

After several attempts at assisted reproduction, Bacon discovered she was pregnant on Christmas Day in 2025.

A Baby Boy Arrives

On September 9, 2026, Bacon gave birth to a healthy baby boy, Landon. His birth followed more than two decades of uncertainty over whether the tissue removed when she was a teenager could ever help her become a mother.

Bacon described the experience as surreal and said she was grateful to her younger self for insisting on preserving her fertility before cancer treatment.

A Milestone for Fertility Preservation

Doctors involved in the case say the birth demonstrates how ovarian tissue can remain viable after long-term storage and later be used to restore reproductive function.

For Bacon, however, the scientific achievement is deeply personal. A decision made when she was a teenager, at a frightening moment in her life, eventually helped make it possible for her to hold her own child more than two decades later.

Source: The Times, October 2026.