A tick bite may leave you with a tiny red bump, or it may expose you to a tick-borne illness.
Ticks are eight-legged arachnids that live in grass, shrubs, wooded areas, and leaf piles, especially during tick season.
If you find a tick attached, remove it promptly with fine-tipped tweezers. Clean the area and monitor yourself for new symptoms over the next several weeks.
Most tick bites do not cause illness. Some ticks can transmit infections that need medical treatment.
What You May Notice After A Bite
You can easily miss a tick bite because the bite itself often does not hurt. You may notice an attached tick, a small area of redness or swelling, or a rash that changes over time.
Finding An Attached Or Engorged Tick
Ticks often move to warm, moist areas such as your armpits, groin, scalp, waist, ears, and the backs of your knees. A tick can stay attached for hours or days while feeding.
As it takes in blood, the tick becomes engorged and appears larger, sometimes gray-blue or greenish. You may not feel the bite when it happens.
Check your entire body after outdoor exposure, even if you do not see a bite mark.
Normal Skin Reactions Versus An Expanding Rash
A minor tick bite can cause a small red or discolored bump, mild itching, or brief tenderness. This reaction generally stays near the bite and gradually improves.
An expanding rash that appears days to weeks later needs medical attention. Lyme disease can cause erythema migrans, often called an EM rash, which may expand outward and sometimes resemble a bull’s-eye.
Not every person with Lyme disease develops this rash. A lone star tick can also be associated with southern tick-associated rash illness, or STARI, which may produce an expanding lesion that resembles erythema migrans.
Allergic Reactions And Rare Tick Paralysis
An allergic reaction can cause marked redness, swelling, burning, blisters, or a widespread rash. Shortness of breath, throat swelling, dizziness, or trouble breathing can signal anaphylaxis and require emergency care.
Rarely, tick saliva can cause tick paralysis. Increasing weakness, especially weakness that begins in your legs and moves upward, warrants immediate emergency evaluation.
When Symptoms May Signal Tick-Borne Illness
Many tick-borne diseases begin with general symptoms that can look like a common viral infection. Your location, the tick species, how long it was attached, and the timing of symptoms all help your clinician assess risk.
Early Flu-Like Symptoms To Watch For
Within days to several weeks after exposure, watch for fever, chills, headache, fatigue, muscle pain, joint pain, nausea, weakness, or swollen lymph nodes. The Centers for Disease Control and Prevention’s overview of tickborne disease symptoms notes that fever, headaches, fatigue, and muscle aches are common warning signs.
A new rash, especially with fever, also deserves prompt medical advice. Symptoms can be mild at first, and some people do not develop noticeable symptoms immediately.
Lyme Disease And Later Neurologic Or Joint Symptoms
Lyme disease may begin with an expanding erythema migrans rash, fever, fatigue, headache, or body aches. Without treatment, some people develop facial weakness, numbness, tingling, nerve pain, neck stiffness, heart-related symptoms, or recurring joint swelling and arthritis.
A bull’s-eye pattern is not required for Lyme disease. If you develop an unexplained feverish, achy, or unusually fatigued illness after a tick bite, contact a healthcare professional, particularly if you live in or visited an area where Lyme disease is common.
Other Infections Linked To Tick Exposure
Other infections include Rocky Mountain spotted fever, ehrlichiosis, anaplasmosis, babesiosis, tularemia, Colorado tick fever, and relapsing fever. Rocky Mountain spotted fever may cause sudden fever, severe headache, muscle aches, abdominal symptoms, and rash.
Ehrlichiosis and anaplasmosis can cause fever, chills, headache, fatigue, and muscle aches. Babesiosis may cause fever, fatigue, and anemia-like symptoms.
Seek prompt care for worsening illness, confusion, severe headache, neck stiffness, breathing problems, or a rapidly spreading rash.
What To Do Right Away And When To Get Care
You should remove the tick correctly, clean the bite, record the exposure, and monitor your health. A clinician may consider preventive antibiotics or testing based on the tick, attachment time, location, and your symptoms.
Removing A Tick Safely With Tweezers
Use clean, fine-tipped tweezers to grasp the tick as close to your skin as possible. Pull upward with slow, steady pressure.
Avoid twisting, crushing, burning, or coating the tick with petroleum jelly, alcohol, or oil. After removal, wash your hands and the bite with soap and water.
If mouthparts remain embedded and you cannot easily remove them, clean the area and ask a healthcare professional for advice. Save the tick in a sealed container or take a clear photograph if identification may help.
Cleaning The Area And Tracking Symptoms
Clean the bite with soap and water, then note the date, location, and likely exposure area. Photograph the skin each day if redness is present, using a ruler or familiar object to track whether it expands.
For the next few weeks, record fever, chills, headache, fatigue, muscle aches, joint pain, swollen lymph nodes, rash, numbness, or tingling. The CDC’s tick-bite guidance supports contacting a healthcare professional when symptoms develop after exposure.
Do not start leftover antibiotics without medical advice.
Urgent Warning Signs And Medical Evaluation
Call emergency services for shortness of breath, facial or throat swelling, fainting, confusion, severe weakness, or signs of anaphylaxis. Seek urgent medical evaluation for severe headache, neck stiffness, high fever, rapidly spreading rash, new neurologic symptoms, or trouble walking.
Contact a clinician promptly if you develop fever or rash after a tick bite, even when the bite looks minor. Early treatment with appropriate antibiotics can be important for several bacterial infections, and a clinician can determine whether preventive antibiotics are appropriate.
Reducing Your Risk On Future Outdoor Trips
You can lower your chance of tick bites by combining repellent, clothing, trail habits, and careful checks. Hard ticks, also called Ixodidae, can attach to people and pets without being noticed.
Using Repellents And Protective Clothing
Apply a tick repellent containing DEET according to the product label. Treat clothing and outdoor gear with permethrin, or buy pretreated items.
Do not apply permethrin directly to your skin, and follow all label directions. Wear light-colored long sleeves, long pants, and closed-toe shoes.
Tuck your pants into your socks when walking through tall grass or brush. Stay in the center of maintained trails and avoid brushing against vegetation when possible.
Checking People Pets And Gear After Exposure
Check your skin, hair, clothing, shoes, backpacks, and outdoor equipment after you return. Pay close attention to your scalp, behind your ears, armpits, waist, groin, belly button, and behind your knees.
Shower within two hours of coming indoors. Place worn clothing in a hot dryer when appropriate for the fabric.
Examine pets as well, especially around their ears, collar, toes, and between their legs. Ticks can travel between animals and people.
