10-Month-Old’s Body Covered in ‘Painful Bleeding Lesions’ from Rare Cancerous Birthmark

**Mum Faces Heartbreaking Challenge as Infant Daughter Battles Rare Skin Condition and Cancer Diagnosis**

Katelyn Clarke, a 23-year-old mother from Plymouth, is grappling with one of the toughest challenges of her life as her ten-month-old daughter, Macey-Mai, confronts a rare skin condition that has led to a cancer diagnosis. This harrowing journey began shortly after Macey-Mai’s birth in May 2025, which had initially seemed the culmination of a healthy pregnancy.

Macey-Mai has been diagnosed with giant congenital melanocytic nevus (GCMN), a rare condition that manifests as large, dark, noncancerous birthmarks known as nevi. According to the National Institutes of Health (NIH), individuals with GCMN are at heightened risk of developing aggressive skin cancers like melanoma. For Macey-Mai, her largest birthmark spans her entire back and is accompanied by over 100 smaller marks situated on her stomach, scalp, arms, and legs.

Katelyn shared the profound shock she felt upon receiving this difficult diagnosis. The first glimpse of worry came when Macey-Mai developed seven painful lesions on her largest birthmark. These lesions began to bleed and grow, prompting doctors to recommend their removal for further analysis. The urgency of the situation was underscored by Katelyn’s daily vigil over her daughter’s condition, where she meticulously photographed the growths to monitor any changes. “Every single day I have got to take photos, to sit there and look at every single inch of her,” Katelyn detailed, reflecting on the intense scrutiny required to catch any early signs of malignancy.

In August 2025, Macey-Mai underwent surgery to have the lesions excised, with samples sent for genetic testing. The months that followed were fraught with anxiety as Katelyn awaited results while caring for a daughter whose lesions required ongoing antibiotic treatment. Her motherly instincts were heightened, as even the slightest change in Macey-Mai’s condition could signal a serious problem.

Tragically, the results arrived in March 2026, bringing devastating news. One of the lesions was confirmed to be cancerous, a diagnosis that shattered Katelyn’s world. “I have never cried like that before; my heart’s been broken since we received the news that one of the lumps was malignant,” she recounted. Katelyn expressed the unthinkable pain of learning that a condition, typically associated with risks in adulthood, had struck her infant daughter so soon.

In addition to grappling with the emotional toll of the diagnosis, Katelyn has been active in raising awareness of her daughter’s plight through a GoFundMe campaign. As Macey-Mai’s lesions continue to develop, doctors remain apprehensive about the potential spread of the cancer, indicating that further surgery and treatment may be necessary. Katelyn, navigating the complexities of being a parent to three children while confronting this rare medical condition, described her experience as an extreme juggling act.

As Macey-Mai’s first birthday approaches, Katelyn’s emotions are bittersweet. The occasion is marked by the overshadowing reality of her daughter’s ongoing health battles. Nevertheless, she remains determined to celebrate the milestone, hoping to give Macey-Mai the “best birthday ever” despite the uncertainties that lie ahead. “We will never know if it is going to be the last,” Katelyn reflected, highlighting the mixed feelings that accompany the upcoming celebration.

Many families facing similar struggles find comfort and support in sharing their experiences, and Katelyn is keen to highlight the importance of awareness surrounding rare health conditions. Her journey underscores the critical need for early detection and intervention for children like Macey-Mai, who are navigating an uphill battle against rare conditions at such a tender age.

Katelyn Clarke’s heart-wrenching story serves as a reminder of the resilience of families dealing with chronic conditions and how life’s unpredictability can challenge even the most prepared parents. As she and Macey-Mai continue their fight, the hope remains that advancements in medical research will pave the way for better treatment options for children with GCMN and other similar rare conditions.