Ticks
What does a tick bite look like? Day 1 to day 30
What does a tick bite look like? Usually a small red bump, a lot like a mosquito bite. Here's what's normal on day 1, the signs worth watching for the next 30 days, and when the CDC says to call a doctor.
By Hayden Rhinehart, technician managerLicensed and insured in MichiganPublished
Summary
The short answer
A tick bite often looks like a small red bump, a lot like a mosquito bite. The CDC says that's common, and it generally goes away in a day or two. Take the tick off as soon as possible, and jot down the date and where you'd been. Then watch the spot and how you feel for about 30 days. If a rash or fever shows up within several days to weeks, the CDC says see your doctor.
A small red bump right after a tick bite is common, the CDC says, so the weeks after are what to watch. Found the tick after yard work? Call us at (734) 519-6671 and we'll look at the edges of your yard.
Prefer to listen? 45 seconds.
The short version, read aloud. Read by a synthetic voice, not one of our technicians.
Just pulled a tick off? In April, someone posted on Ask Extension about a tick that had been on them about 5 hours after a walk in Scio Township. MSU Extension's expert said it was a deer tick. And if any symptoms showed up, he said to see a medical professional.
That's good advice for tick bites on humans, or a tick sting, as some folks call it. Here's what to watch for, day by day.
What does a tick bite look like on day 1?
A tick bite usually looks like a small, red, itchy bump. That's how the Merck Manual describes it once the tick falls off or you take it off.
The CDC says to take it off as soon as possible with clean, fine-tipped tweezers. Grab it close to the skin and pull with steady, even pressure. Don't wait to get to a doctor to do it.
Is a small red bump after a tick bite normal?
Often, yes. The CDC calls it common. It says a small bump or redness that shows up right away and looks like a mosquito bite generally goes away in 1 to 2 days. MSU says it usually lasts a few days, 3 to 5.
Merck lists a red area around the bite, sometimes a couple of inches across, as a sign to watch for. If a rash or fever shows up within several days to weeks, the CDC says to see your doctor.
What are the signs of a tick bite worth watching?
A rash that spreads, a fever, or just feeling sick. The CDC lists early signs from 3 to 30 days after a bite. Fever, chills, headache, tiredness, muscle and joint aches, and swollen lymph nodes may show up, even with no rash.
The rash the CDC describes on its Lyme disease page starts at the bite after 3 to 30 days, about 7 on average. It grows slowly over several days. And it doesn't always look like a "classic bull's-eye." MDHHS says most of these rashes look like a solid red or reddish-blue oval. We're not doctors, so leave reading a rash to yours.
When does a rash or fever after a tick bite mean call a doctor?
Any rash or fever in the weeks after. The CDC puts it plainly: "If you develop a rash or fever within several days to weeks after removing a tick, see your doctor." Worried about a skin rash from a tick bite? That's the line to follow.
Call your doctor or medical provider
MDHHS's chief medical executive says to watch your health after you take a tick off. Check with your medical provider if you get a fever, rash, muscle or joint aches or other symptoms, or if you think the tick was on you for more than 24 hours.
Tell the doctor about the bite, when it happened and where you most likely picked up the tick, the CDC says.
A 2018 review of lab studies found that, except for Powassan virus (which can pass within minutes), the risk of a blacklegged tick passing germs, including the Lyme bacteria, goes up the more days an infected tick stays attached. Checking for ticks at least daily and removing them promptly has strong potential to lower that risk.
How long should you watch a tick bite? Your day 1 to day 30 checklist
About a month. The CDC lists early signs from 3 to 30 days after a bite. And MDHHS says to see your healthcare provider for fever, headache, body aches or rash within a month. So our checklist runs to day 30. It isn't a medical rule.
Printable checklist
Tick bite watch checklist
Start the day you find the tick. Keep it on the fridge for 30 days.
Day 1
Signs of a tick bite, up to day 30
Call your doctor if
Download the printable checklistPDF, one page
Which tick was it? Why the kind matters
It can matter, but you don't have to figure it out yourself. MDHHS says not all ticks spread the same germs. Here are the three ticks you're most likely to meet in Michigan. Michigan residents can email a photo to MDHHS-Bugs@michigan.gov, or send in the tick, for free identification.
We counted 326 iNaturalist records of two ticks, the American dog tick and the deer tick, from our four counties, 2016 to 2025. Dog ticks made up most of them and peaked in May. But all 26 of those records from October and November were deer ticks. That fits what MDHHS says: adult deer ticks are out in spring and fall.
Dog tick and deer tick records in our four counties, by month
Research-grade iNaturalist records from Washtenaw, Livingston, Oakland and Wayne counties, 2016 to 2025, by the month they were seen, in our own count pulled November 2, 2026. A record is a tick someone photographed and posted, not a count of the ticks out there, and records follow where and when people look. This doesn't show your risk, how many ticks carry disease, or which tick bit you. Bigger dot, more records.
| Month | American dog tick | Deer tick |
|---|---|---|
| Jan | 0 | 0 |
| Feb | 0 | 2 |
| Mar | 1 | 15 |
| Apr | 43 | 23 |
| May | 105 | 9 |
| Jun | 66 | 1 |
| Jul | 26 | 0 |
| Aug | 6 | 0 |
| Sep | 1 | 0 |
| Oct | 0 | 14 |
| Nov | 0 | 12 |
| Dec | 1 | 1 |
Pulling ticks off after time in your own back yard? Get a free quote and we'll look at where they're coming from.
Where did it come from? The edges of your yard
For many people, right at home. The CDC says many people get ticks in their own yard or neighborhood. So check yourself and your animals after being outdoors, including in your own yard, MDHHS says.
I fogged a back fence line once while a beagle kept pace with me from inside the house, running window to window and then down the doorwall. When I got back to the truck, there were nose prints all over the glass.
Our tick control for your yard puts the most attention on shaded edges, fence lines, brush, ground cover and leaf litter. And the same visit covers mosquitoes and outdoor fleas. It cuts the number of ticks, but it can't promise nobody gets bitten. The CDC says not to rely on spraying to lower your risk of infection, so keep checking people and pets.
Want a second set of eyes on the back of your lot? Ask us to look at your yard, or call (734) 519-6671.
Pulling ticks off after yard work?
We treat the shaded edges, brush and leaf litter where ticks wait, as part of Mosquito Shield. The same visit covers mosquitoes and outdoor fleas. Quotes are free.
Rather not call? Get your free quote right here.
What are we dealing with?
Tap everything you have seen. Most homes have more than one.
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Common questions
What does a tick bite look like on humans?
Tick bites on people usually look like a small, red, itchy bump where the tick was, the Merck Manual says. The CDC says a small bump or redness right after the bite that looks like a mosquito bite is common. Keep an eye on it, and see your doctor if a rash or fever shows up within several days to weeks.
Does a tick bite hurt?
Not usually. MDHHS says that when a tick bites, it does not hurt. So you might not know until you spot the tick. The CDC says to check your whole body after time where ticks may live, including your own backyard, and to use a mirror. The back of the knees is on its list.
Does a tick bite itch?
It can. The Merck Manual describes a tick bite as a small, red, itchy bump after the tick falls off or you remove it. Itchy or not, the CDC says to see your doctor if you get a rash or fever within several days to weeks after you take the tick off.
What should I tell my doctor about a tick bite?
That you had a tick bite, when it happened and where you most likely picked up the tick, the CDC says. MDHHS adds that you should tell your doctor if you're ill and have had a tick bite or been in an area with ticks. And if you saved the tick, MSU says an intact one is much easier for your doctor to identify.
About this page
Hayden wrote this. The facts come from the sources below, checked on November 2, 2026. We're not doctors, so see one about any symptoms. The tick records are our own count from iNaturalist. Photo, here and on the cover: Prowler9009 (CC0, via Wikimedia Commons). See something wrong? Tell us and we'll fix it.
Sources
- Centers for Disease Control and Prevention, What to Do After a Tick Bite (updated June 9, 2026)
- Centers for Disease Control and Prevention, Signs and Symptoms of Untreated Lyme Disease (May 15, 2024)
- Centers for Disease Control and Prevention, Preventing Tick Bites (Aug. 28, 2024)
- Michigan Department of Health and Human Services, Residents urged to take action to prevent tick bites this season (May 21, 2025)
- Michigan Department of Health and Human Services, Ticks and Your Health (brochure, updated June 2025)
- Michigan State University Extension, What You Need to Know About Michigan's Ticks (2025)
- Ask Extension, Is this a deer tick? (question from Washtenaw County, April 13, 2026; reply by David Lowenstein, MSU Extension, April 14, 2026)
- Merck Manual Consumer Version, Quick Facts: Tick Bites (reviewed/revised May 2026)
- Eisen L., Pathogen transmission in relation to duration of attachment by Ixodes scapularis ticks, Ticks and Tick-borne Diseases (2018)
- Our own count, pulled November 2, 2026: iNaturalist research-grade American dog tick and blacklegged tick observations in Washtenaw, Wayne, Oakland and Livingston counties, 2016 to 2025
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