If you’ve been outside at all this spring, you might want to sit down for this. Emergency room visits for tick bites are surging across the country right now, hitting levels we haven’t seen since 2017. And the numbers only tell part of the story, because they don’t even count the people going to urgent care or the ones pulling ticks off at home and hoping for the best.
The CDC’s Tick Bite Tracker shows that in every region of the country except south central states, weekly ER visits for tick bites are the highest they’ve been for this time of year in nearly a decade. During the fourth week of April 2026, out of every 100,000 emergency department visits, 114 were for tick bites. That’s not a typo. ER visits in April were up more than 25% compared to the same month last year. And we’re still in the early part of tick season, which runs from April through September.
So what’s going on? Why are ticks suddenly everywhere? And what do you actually need to know to protect yourself this year? Let’s get into it.
Where the Problem Is Worst Right Now
Not every part of the country is getting hit equally. The Northeast is by far the hardest-hit region, with 58 tick bite visits per 100,000 ER visits in 2026. The Midwest comes in second at 40 per 100,000. The Southeast is at 21, the West at 16, and the South Central region (think Texas, Oklahoma, Louisiana) is lowest at just 7 per 100,000.
If you live anywhere from Connecticut to Maine, or across the upper Midwest into Wisconsin and Minnesota, you’re in the thick of it. A national map of tick activity confirms what people in those areas already know: tick encounters are way up this year.
The Fordham Tick Index, which monitors tick activity across parts of New York, New Jersey, and Connecticut, recently rated the risk of getting a tick bite at a nine out of ten. That’s categorized as “very high.” In Alabama alone, more than 200 people have already visited ERs for tick bites this year. Michigan has seen anaplasmosis cases (a bacterial infection spread by ticks) rise nearly fivefold over five years, jumping from 17 cases in 2020 to 82 in 2024.
Why Ticks Are Exploding in Numbers
The short version: warmer winters. When temperatures stay milder through the cold months, more ticks survive to the following spring. They also emerge earlier than they used to. What used to be a problem starting in May is now kicking off in March and April in many parts of the country.
But it’s not just about the ticks themselves. The animals they feed on, mainly deer and white-footed mice, are also thriving in larger numbers thanks to those same mild winters. White-footed mice are one of the primary hosts for blacklegged ticks (the ones that carry Lyme disease), and their population surge has been directly linked to the boom in tick numbers.
Higher humidity levels play a role too. Ticks need moisture to survive, and when humidity stays high for longer stretches, their active season just keeps growing. According to researchers at Johns Hopkins, ticks are now spreading into parts of the South and Southeast where they weren’t previously common, bringing diseases like Rocky Mountain spotted fever and ehrlichiosis with them.
Lyme Disease Is Still the Big One
An estimated 476,000 people are treated for Lyme disease every year in the U.S., making it the most common tick-borne illness in the country by a huge margin. State health departments reported over 89,000 confirmed cases to the CDC in 2023 alone, and experts at Johns Hopkins say the real number is probably closer to half a million once you account for underreporting and misdiagnoses.
Lyme is most common in the Northeast, Upper Midwest, and parts of the West. If you get bitten by an infected blacklegged tick, symptoms usually show up within 3 to 30 days. The classic sign is the bullseye rash, which appears in about 70 to 80 percent of cases. Caught early, antibiotics handle it pretty well. Left alone, it gets a lot more complicated, potentially affecting joints, the heart, and the nervous system.
There’s one piece of genuinely good news on this front. In late March 2026, Pfizer and Valneva announced that their experimental Lyme disease vaccine showed more than 70% efficacy in a Phase 3 trial. The vaccine works by creating antibodies that actually kill the Lyme-causing bacteria inside the tick as it feeds, before the bacteria can enter your bloodstream. The companies are now seeking FDA approval, which, if it comes through, would be the first Lyme vaccine available in decades.
The Tick That Can Make You Allergic to Burgers
Lyme gets the most attention, but there’s another tick-related problem that’s been growing fast and doesn’t get talked about enough: alpha-gal syndrome. It’s caused by the Lone Star tick, and it can make you allergic to red meat. Beef, pork, venison, dairy, even medications made with beef gelatin can trigger a reaction.
When a Lone Star tick bites you, it can transmit a sugar molecule called alpha-gal. Your body develops antibodies to it, and the next time you eat something containing that molecule, you can have an allergic reaction. About 60% of people with alpha-gal syndrome experience anaphylaxis, which is severe enough to require an EpiPen. The reaction is delayed, usually appearing several hours after eating, which makes it tricky to diagnose.
Between 2010 and 2022, more than 110,000 suspected cases were identified, and the CDC estimates the real number could be as high as 450,000. In 2025, a man in New Jersey died after eating a hamburger, making it the first known death directly linked to alpha-gal syndrome. The allergy can fade over time (anywhere from one to five years), but there’s no cure.
Lone Star ticks used to be confined mostly to the southern states, but they’ve been moving north as temperatures warm. They also carry other diseases, including ehrlichiosis, tularemia, Heartland virus disease, and Bourbon virus disease. So if you thought Lyme was the only thing to worry about, think again.
Your Backyard Is More Dangerous Than a Hiking Trail
Here’s something most people don’t realize: the CDC says you’re actually more likely to pick up a tick in your own yard than on a hiking trail in the woods. If you have a suburban home in a state like Illinois, Wisconsin, Minnesota, New York, or Connecticut, the grass and brush at the edges of your property are prime tick territory.
Ticks live in grassy, brushy, and wooded areas, and they’re especially concentrated where your lawn meets trees or brush. They’re also on your pets. Every time your dog runs through the yard and comes back inside, there’s a chance it’s bringing passengers.
The CDC recommends some simple yard maintenance that can make a real difference. Remove leaf litter. Clear tall grass and brush from the edges of your property. Put down a 3-foot-wide barrier of wood chips or gravel between your lawn and any wooded areas. Mow frequently. Stack firewood neatly in a dry spot (messy wood piles attract rodents, which attract ticks). Keep playground equipment and patio furniture away from yard edges and tree lines. Use fencing to discourage deer from coming through.
How to Deal With a Tick That’s Already on You
If you find a tick attached to your skin, do not go to the ER to have it removed. Seriously. The CDC is actually asking people to stop doing that, because the longer a tick stays attached, the higher the risk of disease transmission. Removing a tick within 24 hours can significantly lower the chances of getting Lyme disease.
Grab clean, fine-tipped tweezers. Grasp the tick as close to your skin as possible. Pull straight up with steady, even pressure. Don’t twist or jerk it, because that can break off the mouthparts and leave them in your skin. After removal, clean the bite area and your hands with soap and water or rubbing alcohol.
Do not try to burn the tick off. Don’t smother it with petroleum jelly or nail polish. Those old tricks don’t work and can actually make things worse by agitating the tick and forcing infected fluids into your skin.
If you pull one tick off, check your entire body carefully because there may be more. And if you develop a rash or fever in the days or weeks following a bite, see a doctor right away.
What Actually Works to Prevent Bites
The number one thing experts recommend is treating your clothing and gear with permethrin before you go outside. You can buy it as a spray (0.5% concentration) and apply it to boots, pants, socks, and camping gear. It stays effective through several washings. You can also buy pre-treated clothing if you don’t want to deal with the spray.
On exposed skin, use an EPA-registered insect repellent containing DEET, picaridin, IR3535, oil of lemon eucalyptus, or 2-undecanone. When you come back inside, toss your clothes in the dryer on high heat for 10 minutes. That kills any ticks clinging to the fabric. (Cold or medium water in the washing machine does not kill them.) Take a shower within two hours of coming indoors to wash off any ticks that haven’t attached yet.
Despite how common tick bites are (an estimated 31 million Americans get bitten every year), a survey across 28 states found that fewer than half of people take any steps to prevent them. That’s a staggering gap between what people know and what they actually do. This year, with numbers already at a near-decade high and the peak of the season still ahead, closing that gap matters more than it has in a long time.