Erin Moriarty opens up about her harrowing Graves' disease diagnosis

Actress Erin Moriarty has revealed her battle with Graves’ disease, an autoimmune condition affecting the thyroid. Diagnosed in May 2025, she faced severe health struggles that began as early as late 2023. Her decision to share the story comes after months of coping with both physical and emotional challenges. Moriarty first noticed symptoms in late 2023, including extreme fatigue, numbness in her hands and feet, and heart palpitations. She also experienced urinary pain and dramatic mood swings, which worsened over time. While filming The Boys, her short-term memory deteriorated, making work increasingly difficult.

Her condition led to a mental-health crisis so severe that she required hospitalisation. The public scrutiny over her changing appearance added to the strain, pushing her to speak out. Treatment eventually eased her physical symptoms, but the emotional impact remained.

Now, Moriarty is urging others to pay attention to their bodies before symptoms become unmanageable. By going public, she hopes to encourage people to seek help sooner rather than dismissing warning signs. Moriarty’s experience highlights the importance of early medical intervention for autoimmune disorders. Her story serves as a reminder that persistent symptoms—even subtle ones—should never be ignored. She continues to advocate for self-care and timely treatment in the face of chronic illness.