The primary cause of personal difficulties faced by composer Beethoven was his progressive hearing loss. Despite this challenge, Beethoven continued to compose some of his most remarkable works, showcasing resilience and creativity. His gradual deafness began in his late twenties and became profound by his forties, yet he developed innovative techniques for composing music, including using vibrations and visual aids. Beethoven's struggles only deepened the emotional depth of his compositions, making him an enduring symbol of artistic genius amid adversity.