Why Do I Get Pulsatile Tinnitus When Sick? The Reason

Pulsatile tinnitus is a rhythmic sound in your ear that beats in time with your heartbeat. When you’re sick, that rhythm can become louder or more noticeable because illness changes blood flow, mucus, and pressure around your ears. The most common reason is increased blood flow and congestion from a cold, flu, sinus infection, or ear infection, which makes the sound of your own pulse easier to hear.

Why Do I Get Pulsatile Tinnitus When Sick?

Illness can make pulsatile tinnitus appear or worsen for a few reasons. None of them mean something dangerous is happening, but they explain why your ear suddenly seems to have a drum inside it.

When you get sick, your body sends more blood to areas that are fighting infection. Blood vessels in and around your ears widen, and the blood moving through them becomes more audible. This is called increased vascular flow. It is the same reason you can sometimes feel your heartbeat in your neck or temple when you have a fever.

At the same time, congestion and swelling can narrow the spaces blood flows through. When a vessel narrows, blood moves faster through that section, and faster flow tends to make more noise. This is the same principle behind a garden hose: squeeze the opening and the water rushes through louder. In your ear, that sound travels to the cochlea, the hearing organ, where it can be perceived as a pulsing tone.

Fever itself also raises your heart rate. A faster heartbeat means more pulses per minute, so the sound becomes more frequent and often more noticeable.

Most of the time, this type of pulsatile tinnitus fades as the illness resolves. If it does not, that is worth investigating.

What Is the Difference Between Pulsatile and Regular Tinnitus?

Regular tinnitus is usually a steady ringing, buzzing, or hissing sound. Pulsatile tinnitus is rhythmic, matching your heartbeat. That difference matters because the two have different likely causes.

Regular tinnitus is often linked to hearing damage, age-related hearing loss, or exposure to loud noise. It tends to be constant rather than pulsing.

Pulsatile tinnitus is more often linked to blood flow. It can be caused by:

• Increased blood flow from fever, exercise, pregnancy, or illness
• Narrowed blood vessels near the ear
• High blood pressure
• Anemia, which makes blood thinner and flow faster
• Structural issues in the veins or arteries near the ear
• Middle ear fluid or infection

If you can make the sound stop or change by pressing on your neck, that points toward a vascular cause. This is something to mention to a doctor, because it helps narrow down what is going on.

How Do Colds and Sinus Infections Cause Pulsatile Tinnitus?

Colds, flu, and sinus infections cause swelling in the nasal passages and eustachian tubes. The eustachian tube connects your middle ear to the back of your throat. When it swells shut, pressure builds in the middle ear and fluid can collect.

That fluid does two things. It changes how sound travels through your ear, and it can make the blood vessels near your ear more noticeable. The result is a pulsing sound that seems to come from inside your head.

Sinus infections add another layer. Swollen sinus tissue sits close to major blood vessels and the ear. When those tissues are inflamed, the pulse in nearby vessels can become more audible.

Some people notice the sound is worse when they lie down, blow their nose, or bend over. That is because these positions change pressure and blood flow in the head and neck. It is a common pattern with congestion-related pulsatile tinnitus and not usually a sign of something serious.

When Should Pulsatile Tinnitus Be Checked by a Doctor?

Pulsatile tinnitus that starts suddenly and does not go away deserves a medical evaluation. Most cases linked to illness are temporary, but some causes need treatment.

See a doctor if you have any of these:

• The sound continues after your cold or infection clears
• It is only in one ear
• You also have hearing loss, dizziness, or vertigo
• You have vision changes, severe headache, or weakness
• The sound is getting louder over time
• You can hear it when a doctor listens to your neck with a stethoscope

That last point is important. A doctor can sometimes hear pulsatile tinnitus through a stethoscope placed on the neck or behind the ear. This is called an objective pulsatile tinnitus, and it usually points to a specific vascular cause that can be identified.

Pulsatile tinnitus is rarely a sign of a life-threatening problem. But because it can be linked to blood vessel conditions, anemia, thyroid issues, or high blood pressure, it should not be ignored if it persists.

What Makes Pulsatile Tinnitus Worse When You’re Sick?

Several things stack up when you’re sick and make the sound more noticeable.

Fever raises your heart rate and increases blood flow. Congestion narrows passages and changes pressure. Dehydration from not drinking enough can thicken your blood and change how it flows. Some cold medicines, especially decongestants, can raise blood pressure and heart rate, which may make the pulse louder.

Lying down flat can also make it worse because blood pools in the head and neck. Sleeping with your head slightly elevated sometimes helps, though this is based on general observation rather than strong clinical trials.

Stress and poor sleep make everything more noticeable. When you’re tired and anxious, you tend to focus on internal sounds more. This does not cause the tinnitus, but it can make an existing sound feel louder.

Does Pulsatile Tinnitus From Illness Go Away on Its Own?

In most cases linked to a cold, flu, or sinus infection, the sound fades as the illness resolves. Congestion clears, fever drops, and blood flow returns to normal. That process usually takes days to a couple of weeks, depending on the illness.

If the sound is still there weeks after you feel better, that is a reason to get checked. It could mean the cause was not the infection itself, or that something else is going on.

There is no specific treatment for pulsatile tinnitus caused by illness. Managing the underlying illness is the main approach. That means treating the infection if one is present, staying hydrated, and addressing high blood pressure if that is a factor.

Some clinicians recommend reducing caffeine and alcohol during recovery, since both can affect blood flow and heart rate. The evidence for this specifically helping pulsatile tinnitus is limited, but it is a low-risk change some people find helpful.

What Else Can Cause a Pulsing Sound in the Ear?

Illness is one cause, but not the only one. If pulsatile tinnitus appears without any sickness, other explanations become more likely.

Common non-illness causes include:

• High blood pressure
• Anemia
• Thyroid conditions
• Pregnancy, which increases blood volume
• Arteriovenous malformations, which are abnormal connections between arteries and veins
• Venous sinus stenosis, a narrowing of veins that drain blood from the brain
• Tumors near the ear, which are rare

Some of these are serious and some are not. The only way to know which applies to you is through evaluation. Imaging such as an MRI or CT scan is sometimes used when the cause is not clear from a physical exam.

It helps to keep track of when the sound started, whether it is in one ear or both, what makes it better or worse, and whether you have other symptoms. That information makes a doctor’s evaluation faster and more accurate.

Can You Prevent Pulsatile Tinnitus When You Get Sick?

You cannot always prevent it, since it depends on how your body responds to illness. But some steps may reduce how noticeable it is.

Stay hydrated. Dehydration can affect blood thickness and flow. Treat fever with appropriate medication if needed. Keep blood pressure under control if you have a history of high blood pressure. Get enough rest, since fatigue and stress can make internal sounds more noticeable.

If you use decongestants and notice the pulsing gets worse, tell your doctor. Some decongestants raise blood pressure and heart rate, which can amplify the sound.

None of these steps are proven to prevent pulsatile tinnitus specifically. They are general measures that support normal blood flow and reduce strain on your body while you recover.