Authoritative Sources – Causes and Levels of Tinnitus

1. American Tinnitus Association (ATA) – https://www.ata.org/understanding-facts/causes The American Tinnitus Association is a leading organization dedicated to tinnitus research, education, and advocacy. The ATA website provides comprehensive information on the various causes of tinnitus, including noise-induced hearing loss, head and neck injuries, and ototoxic medications.

2. British Tinnitus Association (BTA) – https://www.tinnitus.org.uk/tinnitus-causes The British Tinnitus Association is a UK-based organization that supports individuals with tinnitus and promotes research into the condition. Their website offers a detailed overview of tinnitus causes, such as exposure to loud noise, ear infections, and certain medical conditions like Meniere’s disease.

3. Mayo Clinic – https://www.mayoclinic.org/diseases-conditions/tinnitus/symptoms-causes/syc-20350156 The Mayo Clinic is a renowned nonprofit organization focused on clinical practice, education, and research. Their website features an extensive article on tinnitus, including information on the possible causes, ranging from age-related hearing loss to blood vessel disorders and muscle spasms in the inner ear.

4. National Institute on Deafness and Other Communication Disorders (NIDCD) – https://www.nidcd.nih.gov/health/tinnitus The NIDCD is a part of the National Institutes of Health (NIH) in the United States, and it supports research on communication disorders, including tinnitus. Their website provides a thorough explanation of tinnitus causes, such as noise exposure, earwax blockage, and certain medical conditions like TMJ disorders and head injuries.

5. American Academy of Otolaryngology–Head and Neck Surgery (AAO-HNS) – https://www.entnet.org/content/tinnitus The AAO-HNS is a professional organization representing ear, nose, and throat specialists (otolaryngologists). The organization’s website features a patient health information section on tinnitus, discussing various causes such as noise-induced hearing loss, middle ear infections, and otosclerosis, as well as the levels of tinnitus severity and treatment options.