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Tonsillitis is inflammation of the tonsils, usually due to a viral infection or, less commonly, a bacterial infection.
Symptoms of tonsillitis
Read about the symptoms of tonsillitis, including sore throat, red and swollen tonsils, pain when swallowing and high temperature.
Causes of tonsillitis
Read about the causes of tonsillitis, which include viruses such as rhinoviruses and influenza, and streptococcus bacteria.
Diagnosing tonsillitis
Find out how tonsillitis is diagnosed by a GP, who may recommend laboratory tests or blood tests to check for bacterial tonsillitis or glandular fever.
Treating tonsillitis
Read about how tonsillitis is treated with painkillers, antibiotics and tonsillectomy surgery, which is when the tonsils are removed.
Complications of tonsillitis
Read about the complications that result from tonsillitis, including middle ear infection, quinsy and sleep apnoea.
'For us, the benefits of tonsillectomy far outweighed the risks'
Read the story of Tessa Hughes, from Brixton in London, who had a tonsillectomy when she was 15 after having chronic tonsillitis since childhood.
See what the doctor sees with Map of Medicine
See what your doctor sees, find out what is happening with your Tonsillitis treatment and what the next steps might be.