Tonsillitis shows up as a combination of a painful sore throat, visibly red and swollen tonsils, and often a white or yellow coating on the tonsils themselves. If you’re dealing with throat pain and wondering what’s causing it, you can check several things at home to get a clearer picture before deciding whether you need medical attention.
The Main Symptoms to Look For
The hallmark signs of tonsillitis are red, swollen tonsils and a sore throat that makes swallowing painful. You may also notice white or yellow patches or a coating on the surface of your tonsils. Beyond what you can see in your throat, tonsillitis typically causes swollen, tender lymph nodes on the sides of your neck, which you can feel by pressing gently just below your jawline.
Other common symptoms include fever, a scratchy or muffled-sounding voice, bad breath, and a headache. Children sometimes complain of stomach pain or refuse to eat because swallowing hurts. These symptoms tend to come on within a day or two and can range from mildly annoying to genuinely miserable depending on whether the infection is viral or bacterial.
How to Check Your Tonsils at Home
You can get a decent look at your own tonsils with a mirror and a flashlight. First, rinse your mouth with water to clear away any food. Then stand in front of a well-lit mirror (or use a flashlight aimed at the back of your throat), open wide, and press your tongue down. Your tonsils sit on either side of the back of your throat, just behind and above the base of your tongue.
Healthy tonsils are pink and roughly the same size. Inflamed tonsils look noticeably red, puffy, and may have white or yellow spots or a patchy coating. If you see those visual changes and you’re also running a fever with a painful throat, tonsillitis is a strong possibility.
Viral vs. Bacterial Tonsillitis
Viruses cause up to 70% of tonsillitis cases. Viral tonsillitis tends to come with symptoms that overlap with a cold or flu: a runny nose, cough, and generally milder throat pain. It usually resolves on its own within a week or so as your immune system clears the virus.
Bacterial tonsillitis, most often caused by Group A Streptococcus (the same bacteria behind strep throat), generally hits harder. The sore throat is more severe, fever tends to be higher, and you’re less likely to have the cough and runny nose that come with a viral infection. One subtle clue that points toward a bacterial cause is tiny red spots on the roof of your mouth (called palatal petechiae), which may actually be more predictive of strep than the white patches on the tonsils themselves.
The distinction matters because bacterial tonsillitis needs antibiotics, while viral tonsillitis does not. A physical exam alone isn’t enough to tell them apart reliably, which is why doctors use a rapid strep test (a quick throat swab) when they suspect a bacterial cause. If you have a very sore throat with fever and swollen lymph nodes but no cough, that pattern leans bacterial and is worth getting tested.
Tonsillitis vs. Tonsil Stones
If you see small white or yellowish lumps on your tonsils but don’t have a sore throat, fever, or swollen glands, you may be looking at tonsil stones rather than tonsillitis. Tonsil stones are hardened, calcified bits of debris that collect in the small crevices of the tonsils. They’re annoying and can cause bad breath, but they aren’t an infection. They sometimes dislodge on their own when you cough or swallow. The key difference: tonsillitis makes you feel sick, while tonsil stones are mostly a cosmetic or breath issue.
What Happens at the Doctor’s Office
Your provider will look at your throat, feel the lymph nodes along your neck, and ask about your other symptoms. A cough, runny nose, or rash can help narrow down the cause. If strep is suspected, they’ll swab the back of your throat for a rapid antigen test, which returns results in minutes. Sometimes a throat culture (which takes a day or two) is sent as a backup if the rapid test is negative but suspicion remains high.
Bacterial tonsillitis is treated with antibiotics, and most people start feeling better within two to three days of starting them. Viral tonsillitis is managed with rest, fluids, and over-the-counter pain relief. In both cases, warm or cold liquids, throat lozenges, and soft foods can make the days more bearable.
Signs That Need Urgent Attention
Most tonsillitis runs its course without complications, but certain symptoms signal something more serious. You should seek urgent care if you experience difficulty breathing or voice changes, trouble swallowing your own saliva, difficulty opening your mouth, severe pain concentrated on one side of your throat, or a persistent high fever that isn’t responding to medication.
These can be signs of a peritonsillar abscess (sometimes called quinsy), a pocket of pus that forms next to a tonsil. It’s uncommon but requires prompt treatment. Pain that suddenly gets much worse on one side, a muffled “hot potato” voice, and an inability to open your mouth fully are the classic warning signs.