Causes of Sore Throat

A sore throat can have many causes. Listing below some of the most common causes of sore throat :

  • Common viruses, and even the viruses that cause mononucleosis (mono) and the flu, can cause a sore throat. Some viruses can also produce blisters in the mouth and throat (“aphthous stomatitis”).
  • Breathing through the mouth can produce throat dryness and soreness.
  • Sinus drainage (post nasal drip) may cause a sore throat.
  • A sore throat can also be caused by bacteria. The two most common bacteria to cause a sore throat are Streptococcus (which causes strep throat) and Arcanobacterium haemolyticum. Arcanobacterium causes sore throats mainly in young adults and is sometimes associated with a fine red rash.
  • Sore throat appearing after treatment with antibiotics, chemotherapy, or other immune-compromising medications may be due to Candida, commonly known as “thrush.”
  • A sore throat lasting for more than two weeks can be a sign of a serious illness, such as throat cancer or AIDS.

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