A tick bite may leave nothing more than a small red bump. Some ticks can transmit bacteria, viruses, or parasites.
What happens if ticks bite humans depends on the tick species and how long it stayed attached. The location and whether the tick carried a pathogen also matter.
Remove an attached tick promptly, clean the skin, and watch for tick bite symptoms such as an expanding rash, fever, headache, or unusual fatigue during the following days and weeks. Most tick bites do not cause illness. Early medical advice matters if you feel sick.
Your risk depends on more than just the bite. Record when and where you found the tick, keep it if possible, and tell a healthcare provider about the exposure if symptoms appear.
The Centers for Disease Control and Prevention recommends prompt removal and prevention measures. Seek medical evaluation if you develop signs of a tick-borne disease.
What Usually Happens After A Bite
Ticks are eight-legged arachnids that feed on blood. A local reaction often fades within several days.
Illness from tick-borne diseases may appear later.
How An Attached Tick Feeds
Hard ticks in the Ixodidae family may look like a tiny dark speck before feeding. They become rounder as they fill with blood.
Soft ticks have a different body texture and feeding pattern. Both types can attach to people.
Tick saliva may numb the skin, so you might not feel an attached tick. The bite area can develop mild redness, warmth, itching, swelling, inflammation, blistering, or bruising. A small, stable lesion usually improves after removal.
Normal Skin Reactions Versus Concerning Changes
A small spot that stays close to the bite is usually just irritation. Mark the edge of the redness with a pen and take a photo to help you notice any expansion.
Contact a healthcare provider if the redness spreads, forms a ring-shaped rash, or appears with fever, headache, fatigue, muscle pain, joint pain, or swollen lymph nodes. A rash from infection does not always look like a classic bull’s-eye.
Allergic Reactions And Tick Paralysis
Anaphylaxis is rare. If you have shortness of breath, throat or facial swelling, faintness, or widespread hives, seek emergency care right away.
Use a prescribed epinephrine auto-injector as directed and call 911. Diphenhydramine, also known as Benadryl, may help some mild allergic symptoms, but it does not replace emergency treatment.
Rarely, tick paralysis causes progressive weakness, unsteady movement, difficulty speaking, or breathing problems. Remove the tick and seek emergency care immediately if weakness is spreading.
Remove The Tick Safely Right Away
Prompt tick removal limits the time available for some pathogens to enter your body. Use fine-tipped tweezers, clean the bite afterward, and document the date and location for a healthcare provider.
How To Remove A Tick With Tweezers
- Use fine-tipped tweezers and grasp the tick as close to your skin as possible.
- Pull upward with slow, steady pressure.
- Keep pulling until the tick releases. Avoid twisting, jerking, or squeezing its body.
- Wash your hands after completing the tick removal.
If you cannot remove the tick or think part of it remains, contact a healthcare provider. Do not dig deeply into your skin to retrieve small mouthparts.
Cleaning The Skin And Disposing Of The Tick
Wash the bite and your hands with soap and water. You can apply an antiseptic if available.
Place the tick in a sealed container or attach it to a piece of tape. Write down when and where you likely encountered it.
Identification may help a healthcare provider assess your risk, though testing the tick does not always determine whether you became infected.
Mistakes To Avoid After Removal
Do not burn the tick, crush it against your skin, or coat it with petroleum jelly, alcohol, oil, or other substances while it remains attached. These approaches can irritate your skin and may make the tick release additional saliva.
Do not start leftover antibiotics. A healthcare provider may discuss antibiotics or doxycycline after reviewing the tick type, attachment time, location, and your health history.
The CDC’s Lyme disease prevention guidance notes that a single preventive doxycycline dose may be appropriate in certain circumstances.
Watch For Illness In The Following Weeks
Some tick-borne diseases begin with nonspecific symptoms. Note any change in your health for several weeks.
Keep your healthcare provider informed about outdoor exposure even if you never saw a tick attached.
Symptoms That Need Medical Advice
Contact a healthcare provider if you develop fever, chills, headache, nausea, vomiting, fatigue, flu-like symptoms, muscle aches, joint pain, or swollen lymph nodes after a possible bite.
Symptoms can point to Lyme disease, Rocky Mountain spotted fever (RMSF), ehrlichiosis, anaplasmosis, babesiosis, tularemia, Colorado tick fever, or relapsing fever. These tickborne diseases require different tests and treatments.
Share your travel history, outdoor activities, bite date, and the tick’s appearance if known.
Rashes Linked To Specific Tick-Borne Diseases
Lyme disease may cause an expanding lesion called erythema migrans days to weeks after an infected deer tick or black-legged tick bite. It may be uniformly red rather than bull’s-eye shaped.
Some people have fever, headache, fatigue, muscle aches, or joint pain without a rash. An educational overview of Lyme disease describes an expanding rash or feverish, achy illness within one to four weeks.
RMSF can cause sudden fever, severe headache, nausea, and muscle pain. Its rash may develop after other symptoms.
Ehrlichiosis and anaplasmosis commonly cause fever, chills, headache, muscle aches, and fatigue. Tularemia may produce a painful ulcer or swollen lymph nodes.
Colorado tick fever and relapsing fever can cause recurring fever and body aches.
A bite from a lone star tick can sometimes trigger alpha-gal syndrome. Seek medical advice for delayed hives, swelling, stomach symptoms, or breathing trouble after eating mammalian meat or related products.
When To Seek Emergency Care
Call 911 for shortness of breath, throat or facial swelling, faintness, confusion, severe weakness, seizures, or signs of anaphylaxis. Progressive muscle weakness, trouble walking, difficulty speaking, or breathing difficulty can signal tick paralysis or another serious illness.
Seek urgent medical care for a severe headache, high fever, repeated vomiting, chest symptoms, or rapidly worsening illness after a tick bite.
Lower The Risk Of Future Bites
You can reduce exposure with a registered tick repellent, protective clothing, and a careful tick check after outdoor activity. Pay special attention in tall grass, wooded areas, leaf litter, and other tick-prone areas.
Use Repellents And Protective Clothing
Apply a tick repellent containing DEET, picaridin, or icaridin to exposed skin according to the label. Treat clothing and gear with permethrin when appropriate, and follow product directions carefully.
Keep repellents away from your eyes, mouth, and broken skin. Wear long sleeves, long pants, and light-colored clothing so ticks are easier to see.
Tuck your pants into your socks when walking through brush or tall grass.
Do A Thorough Tick Check
Inspect your clothing and body as soon as you return indoors. Check your scalp, hairline, ears, neck, armpits, waist, groin, and the backs of your knees.
Shower, change clothes, and put worn clothing in a hot dryer when the fabric allows. Check children and pets carefully, since ticks can hide in hair or fur and later reach you indoors.
Know When Exposure Risk Is Highest
Ticks can be active throughout the year. Risk often rises during spring and summer, which many call tick season.
Your exposure depends on local weather and habitat. Tick activity also plays a role, not just the calendar.
Take extra care in wooded areas, tall grass, leaf piles, and other tick-prone spots. Deer ticks, or black-legged ticks, live in regions where Lyme disease is common.
Lone star ticks are widespread across much of the southern and eastern United States. Walk on cleared trails and avoid brushing against vegetation.
Keep grass short around your home.
