what causes tonsillitis - #25706
I am really confused about what's going on with my throat. A few days ago, I started feeling this weird scratchy feeling, and it turned into a sore throat that I thought would just go away. But nope. I ended up going to the doctor, and they said I have tonsillitis. What causes tonsillitis, anyway? My kids have been sick lately too, with some nasty colds, and I'm worried if that's connected. I mean, can tonsillitis be contagious? I remember having this as a kid but can’t recall what causes tonsillitis to happen. It’s super annoying because my tonsils are so swollen they feel like they're blocking my airways sometimes. Is it from a virus or is there a bacteria to blame? The doc gave me some antibiotics, but nobody really explained what causes tonsillitis in the first place. I just wanna know if I should be avoiding my kids or if they might be able to catch whatever this is. I feel like knowledge is power, you know? Like is it common? Should I be worried a lot? What causes tonsillitis to flare up suddenly like this?
100% Anonymously
No sign-up needed.

Doctors' responses
Tonsillitis is often caused by common viruses, but bacteria like the group A streptococcus can also be culprits. This inflammation of the tonsils usually results from these infectious agents, and it’s quite possible that the colds runnin’ through your household played a role. Tonsillitis can indeed be contagious, particularly when it’s viral or bacterial in origin. That means it can spread through close contact, sharing utensils, or being around someone who sneezes or coughs without covering their mouth properly. So yes, it’s good to practice hygiene measures like handwashing and maybe avoid being too close to your kids until things settle down. In terms of contagion, it’s the viral or bacterial infection that can be passed on, not the ‘tonsillitis’ itself.
The scratchiness and sore throat you mentioned are typical symptoms, along with those swelling tonsils—common indicators that your body’s immune response is kicking into gear. Antibiotics you got are usually prescribed if a bacterial cause is suspected; they won’t work on viral tonsillitis, though. When bacteria are involved, antibiotics can help reduce the duration and severity of the illness, and prevent complications. Tonsillitis can also flare up suddenly when your immune system is weakened, especially when dealing with a viral cold as you seem to be encountering. Don’t lose sleep over it being common—tonsillitis is relatively frequent and mostly resolves without complications. Keep an eye out for red-flag symptoms like difficulty breathing, intense pain, or dehydration; these would definitely require immediate medical attention. Otherwise, manage with the antibiotics, stay hydrated, rest, and consider over-the-counter pain relievers if needed to ease the discomfort.
100% Anonymously
Get expert answers anytime, completely confidential. No sign-up needed.
About our doctors
Only qualified doctors who have confirmed the availability of medical education and other certificates of medical practice consult on our service. You can check the qualification confirmation in the doctor's profile.