Tennis legend Monica Seles revealed on August 12, 2025, in an interview with the Associated Press, that she was diagnosed with myasthenia gravis, a neuromuscular autoimmune disease, three years ago. The former player, who won nine Grand Slam titles, chose to share her experience ahead of the US Open in New York to raise awareness about the condition, which affects about 20 out of every 100,000 people worldwide, according to the Cleveland Clinic. The disease, which causes muscle weakness and fatigue, has significantly impacted her daily routine, bringing challenges like double vision and difficulty with simple tasks. Seles’ revelation underscores the importance of recognizing early symptoms and seeking appropriate treatment.
Her decision to go public came after a long period of adjustment. Seles, 51, explained that it took time to accept the diagnosis and understand how myasthenia gravis would change her life. Awareness, she said, is crucial to help others identify the disease, which often goes unnoticed in mild cases.
- Disease impact: Myasthenia gravis affects voluntary muscles, such as those in the eyes, arms, and legs.
- Prevalence: Approximately 60,000 people in the United States live with the condition.
- Seles’ goal: Use her visibility to educate the public about symptoms and treatments.
Seles’ story highlights the importance of discussing rare diseases, especially at high-profile events like the US Open, which begins in late August.
Details of myasthenia gravis
Myasthenia gravis is an autoimmune condition that impairs communication between nerves and muscles, resulting in weakness and fatigue. According to the Cleveland Clinic, the disease occurs when the immune system mistakenly attacks healthy components, particularly in the thymus gland, which plays a key role in the immune system. While the exact cause remains unknown, genetic and environmental factors may contribute to its onset.
The disease affects people of all ages but is more common in women under 40 and men over 60, per the Mayo Clinic. Mild cases may go undiagnosed, complicating accurate prevalence estimates. Symptoms often worsen during physical activity and improve with rest.
- Main symptoms: Double vision, drooping eyelids, difficulty swallowing or speaking.
- Affected areas: Muscles in the eyes, face, neck, arms, and legs.
- Diagnosis: Neurological exams and blood tests can confirm the condition.
- Daily impact: Simple tasks, like brushing hair, can become challenging.
Myasthenia gravis has no cure, but treatments can alleviate symptoms and improve quality of life.
Monica Seles’ personal journey
Monica Seles, who dominated tennis courts in the 1980s and 1990s, faced significant challenges after her diagnosis. She reported symptoms like double vision and weakness in her arms and legs, which began interfering with routine activities, such as playing with children or drying her hair. The former player, known for her determination, sought medical help after noticing she saw “two balls” during a recreational match, a clear sign something was wrong.
Adapting to the disease required changes to her routine. Seles noted that the diagnosis was initially a shock, but gradual acceptance motivated her to share her story. Her decision to speak openly reflects her desire to inspire others to seek medical help for unusual symptoms.
Available treatment options
Although myasthenia gravis is a chronic condition, treatments can help manage symptoms. According to the National Institute of Neurological Disorders and Stroke, options include immunosuppressive medications, thymus gland removal surgery, and lifestyle changes. In some cases, the disease may enter remission, with symptoms reducing or disappearing entirely.
Medications like corticosteroids and cholinesterase inhibitors help improve muscle strength and reduce the autoimmune response. Thymectomy, the surgical removal of the thymus, is recommended in specific cases, particularly when tumors are present in the organ. Therapies like plasmapheresis and intravenous immunoglobulin may be used in more severe cases.
- Medications: Control immune response and enhance muscle strength.
- Surgery: Thymectomy can reduce symptoms in patients with thymoma.
- Complementary therapies: Physical therapy and strategic rest are recommended.
- Remission: Some patients experience temporary or permanent relief.
Treatment choice depends on symptom severity and the patient’s overall health, requiring ongoing medical care.
Importance of awareness
Monica Seles’ revelation underscores the need for greater awareness about myasthenia gravis. Many patients face delays in diagnosis due to a lack of information about the disease. Organizations like the Myasthenia Gravis Foundation of America work to educate the public and support research, promoting events and campaigns to spread knowledge about symptoms and treatments.
Seles, leveraging her platform as a former elite athlete, aims to inspire others to seek early medical help. Her involvement in events like the US Open, even as a spectator or ambassador, can amplify the message about recognizing disease signs. Awareness also helps reduce the stigma associated with chronic conditions, encouraging open dialogue.
- Public education: Campaigns help identify early symptoms.
- Patient support: Support groups offer resources and emotional care.
- Medical research: Studies seek new therapies and potential causes.
Stories that inspire
Seles’ journey is an example of resilience in the face of adversity. Her tennis career, marked by achievements like the Australian Open and Roland Garros, already made her an inspiring figure. Now, by sharing her battle with myasthenia gravis, she reinforces her influence, showing that it’s possible to face health challenges with courage and determination.
Other athletes have also disclosed health conditions to raise awareness. These stories highlight the importance of using visibility to educate and inspire. In Seles’ case, her message resonates with fans and patients, encouraging early diagnosis and treatment.
Myasthenia gravis, though challenging, does not define the lives of those who live with it. With proper treatment and support, many patients maintain an active and productive routine. Seles’ story is a reminder that awareness and early action can make a difference.