California Tick Season: What Hikers Need to Know About Lyme Disease and Tick Bites

Originally Published:
June 10, 2026
Updated:
June 10, 2026
Read Time:
7 min
Medically Reviewed by
Dr.
Nicolas Makhoul
Woman applying insect repellent before hiking to help prevent tick bites

Many Californians associate ticks and Lyme disease with heavily wooded regions of the Northeast, but ticks are found throughout much of the state. From coastal trails and oak woodlands to regional parks and grass-covered hillsides, hikers can encounter ticks in a wide variety of outdoor environments.

Ticks do not jump or fly. Instead, they wait on tall grass, brush, and low vegetation before attaching to people or animals that pass by. Because California is home to numerous hiking destinations with ideal tick habitat, outdoor enthusiasts should be aware of the risks before hitting the trail.

The species most commonly associated with Lyme disease transmission in California is the western black-legged tick (Ixodes pacificus). These ticks are commonly found in:

  • Oak woodlands
  • Forested trails
  • Coastal regions
  • Brush-covered habitats
  • Areas frequented by deer and rodents

Although not every tick carries Lyme disease, infected ticks are present in California and can transmit disease through a bite.

Understanding Lyme Disease Risk in California

Lyme disease is caused by the bacterium Borrelia burgdorferi and is spread through the bite of an infected tick. While California reports fewer cases than some northeastern states, Lyme disease still occurs every year and should not be overlooked.

The risk of infection depends on several factors, including whether the tick carries the bacteria and how long it remains attached. In many cases, prompt tick removal may reduce the likelihood of transmission.

For hikers, campers, trail runners, mountain bikers, dog owners, and others who spend time outdoors, understanding the possibility of Lyme disease is an important part of outdoor safety.

Where Hikers Are Most Likely to Encounter Ticks

Ticks thrive in environments that provide moisture, shade, and access to wildlife hosts.

Higher-risk areas often include:

  • Tall grass
  • Dense brush
  • Leaf litter
  • Woodland edges
  • Overgrown trails
  • Areas with deer or rodent activity

Many people assume ticks are only a concern deep in the wilderness, but encounters often occur along the edges of well-traveled trails and parks.

Activities that may increase exposure include:

  • Hiking
  • Camping
  • Trail running
  • Fishing
  • Hunting
  • Mountain biking
  • Gardening
  • Walking dogs

Staying on established trails and avoiding unnecessary contact with brush or tall grass can help reduce exposure.

How to Protect Yourself Before, During, and After a Hike

Fortunately, most tick bites can be prevented through a few simple precautions.

Before heading outdoors, consider wearing long sleeves, long pants, closed-toe shoes, and tall socks. Light-colored clothing can make ticks easier to spot before they attach.

When hiking, try to stay in the center of trails whenever possible and avoid brushing against vegetation along trail edges. EPA-registered insect repellents may also help reduce the risk of tick bites, and some outdoor clothing can be treated with permethrin for additional protection.

After spending time outdoors, perform a thorough tick check. Pay close attention to:

  • Behind the knees
  • Armpits
  • Groin area
  • Waistline
  • Scalp
  • Behind the ears
  • Around the neck

Parents should check children carefully after outdoor activities, and pet owners should inspect dogs and other pets before bringing them indoors. Pets can carry ticks into the home and may also be at risk for tick-borne diseases themselves, making routine tick prevention and checks important for the entire household.

What to Do If You Find a Tick Attached

Finding a tick can be unsettling, but prompt removal is important. If you are uncomfortable removing a tick yourself or have concerns about a recent tick bite, consider contacting a healthcare provider or visiting an urgent care center for evaluation and tick removal.

Ticks can also be removed at home using fine-tipped tweezers. Grasp the tick as close to the skin as possible and pull upward using steady, even pressure until the tick releases. Once removed, clean the bite area and your hands with soap and water.

Avoid common home remedies such as:

  • Petroleum jelly
  • Nail polish
  • Heat
  • Matches

These methods are generally not recommended and may increase irritation, make removal more difficult, or cause the tick to remain attached longer.

Recognizing the Early Signs of Lyme Disease

Symptoms of Lyme disease may appear days or even weeks after a tick bite.

Early symptoms can include:

  • Fever
  • Chills
  • Fatigue
  • Headache
  • Muscle aches
  • Joint pain
  • Swollen lymph nodes

Some individuals develop a characteristic expanding rash often called a bull's-eye rash, although not everyone experiences this symptom.

Because Lyme disease symptoms can resemble many other illnesses, informing your healthcare provider about recent outdoor activities and possible tick exposure is important.

Other Tick-Borne Diseases to Be Aware Of

While Lyme disease receives the most attention, it is not the only illness associated with ticks.

California ticks can occasionally transmit:

These conditions are less common than Lyme disease but may cause symptoms similar to other infectious illnesses.

When Should You Seek Medical Care?

Most tick bites do not result in illness, but medical evaluation may be appropriate if you develop:

  • Flu-like symptoms
  • Fever
  • Rash
  • Increasing redness around the bite
  • Fatigue
  • Joint pain
  • Concerns that the tick remained attached for anextended period

Early evaluation can help determine whether additional testing or treatment may be appropriate.

Enjoying California Trails While Reducing Tick Risks

California's parks, forests, and open spaces offer countless opportunities for recreation, and the presence of ticks should not discourage people from getting outdoors.

By understanding where ticks are commonly found, taking preventive measures before hiking, performing routine tick checks, and recognizing the signs of Lyme disease, outdoor enthusiasts can significantly reduce their risk while continuing to enjoy everything California's trails have to offer.

Concerned About a Tick Bite or Possible Lyme Disease?

A tick bite does not always lead to illness, but symptoms such as a rash, fever, fatigue, headaches, or joint pain should not be ignored, especially if they develop after spending time outdoors.

BASS Medical Group's Family Medicine and Primary Care providers can evaluate tick bites, Lyme disease concerns, and other outdoor-related health issues. Whether you need reassurance, testing, or treatment recommendations, our team can help determine the most appropriate next steps.

Schedule an appointment, call a BASS Medical Group office near you, or browse our provider directory to find the right physician for your needs.

Medical Disclaimer
The information provided in this blog is for educational and informational purposes only and is not intended as medical advice, diagnosis, or treatment. BASS Medical Group does not endorse any specific tests, treatments, procedures, or opinions referenced in this content. Individual results may vary. Always consult with your physician or a qualified healthcare provider regarding any medical concerns or before making changes to your health regimen.
This article is intended for educational purposes only and should not be considered medical advice. Reading this article does not establish a physician-patient relationship with BASS Medical Group or any of its providers. Symptoms of Lyme disease and other tick-borne illnesses can vary and may resemble other medical conditions. If you discover an attached tick and are unsure how to remove it safely, consult a healthcare professional for guidance or removal assistance. Always seek medical advice from a qualified healthcare provider regarding tick bites, symptoms, diagnosis, or treatment. Seek prompt medical attention if you develop a rash, fever, worsening symptoms, or other concerns following a tick bite.
Professional headshot of Nicolas Makhoul, Primary Care doctor in Pleasant Hill, California.
Nicolas Makhoul
Primary Care
MEET THE DOCTOR
Dr. Nicolas Makhoul is a board-certified family medicine physician based in Pleasant Hill, CA, with over 25 years of experience serving the East Bay community. He emphasizes holistic wellness, balancing family, work, and leisure, and is known for fostering long-term patient relationships.