11586 Lyme Disease

Overview

Lyme disease is a bacterial infection that you can get from the bite of an infected tick. It usually starts with a red rash and flu-like symptoms. If caught early, it can be treated successfully with antibiotics.

Lyme disease is the most common tick-borne illness in parts of North America, Europe, and the UK. It is not common everywhere, but cases are increasing in some areas.

Anyone can get Lyme disease, but it is more likely if you spend time in grassy, wooded, or brushy areas where infected ticks live. People who hike, camp, garden, or work outdoors are at higher risk.

Symptoms

Common symptoms

• A red rash that expands over several days, sometimes looking like a bull's-eye (called erythema migrans)
• Fever or chills
• Tiredness
• Headache
• Muscle and joint aches
• Swollen lymph nodes

Symptoms in children

• The same red rash as adults
• Feeling very tired or irritable
• Fever and headache
• Difficulty sleeping
• Aches in the arms and legs

Symptoms in older adults

• The rash may be less obvious or not remembered
• More severe or persistent joint pain and swelling
• Muscle weakness or numbness
• Confusion or memory problems
• Heart-related symptoms like dizziness or fainting

Causes

Main causes

• Lyme disease is caused by a type of bacteria called Borrelia.
• It is spread to humans through the bite of an infected black-legged tick.
• The tick must usually be attached for 24 to 48 hours to pass on the bacteria.

Risk factors

• Living in or visiting areas with high numbers of infected ticks
• Spending time in tall grass, leaf piles, or woodland areas
• Having pets that can carry ticks into your home
• Not removing ticks quickly or properly

When to see a doctor

See a doctor urgently if:

• You develop a red expanding rash or bull's-eye rash after a tick bite.
• You have fever, chills, and muscle aches within a few weeks of a tick bite.
• You have swelling or pain in a joint, especially a knee.

Book a routine appointment if:

• You found an attached tick and are worried about Lyme disease.
• You were in a high-risk area and are not sure how to remove a tick.
• You have lingering tiredness or aches after a tick bite.

Diagnosis

A doctor will ask about your symptoms, activities, and any recent tick bites. They will also examine your skin for the typical rash. If the rash is present, that is often enough to make a diagnosis.

Tests that may be done

• Blood tests that look for antibodies against Lyme disease (these are most reliable two to four weeks after a bite)
• Sometimes a second test to confirm the first result

What to expect at your appointment

The doctor may start treatment before blood tests come back if the symptoms strongly suggest Lyme disease. If blood tests are done, you may need to provide a blood sample. Results can take a few days or longer.

Treatment

Lyme disease is treated with a course of antibiotics. Starting treatment early greatly improves recovery. Some people with more severe symptoms may need a longer course or intravenous (IV) antibiotics in a hospital or clinic setting.

Self-care at home

• Remove any attached tick carefully with fine tweezers, pulling straight out without twisting.
• Get plenty of rest, especially if you feel tired.
• Drink enough fluids to stay hydrated.
• For fever or pain, ask your pharmacist or doctor about safe over-the-counter options.

Medical treatments

Doctors prescribe antibiotics for Lyme disease. The type, length, and way of taking them depend on your age, symptoms, and how long you have been infected. Sometimes a second course of antibiotics is needed if symptoms persist. Always take the full course exactly as prescribed.

When is surgery considered?

Surgery is not used to treat Lyme disease. In rare cases, someone with severe joint damage from long-term infection might need a joint procedure, but this is not the main treatment.

Living with this condition

During treatment, take your antibiotic exactly as directed. It is normal to feel tired for a few weeks. If you still have symptoms after finishing treatment, let your doctor know. Some people need more time or extra support.

Lifestyle tips

• Pace yourself and rest when you need to.
• Gradually return to normal activities as you feel better.
• Check your skin for ticks after being outdoors.
• Talk to your doctor about any new or worsening symptoms.

Diet and exercise

Eating a balanced diet with plenty of fruits, vegetables, and fluids can support your recovery. Gentle exercises like walking or stretching can help with muscle aches, but avoid pushing yourself until your energy returns.

Mental health and emotional wellbeing

Lyme disease can be frustrating, especially if symptoms last longer than expected. It is common to feel anxious, low, or overwhelmed. Be honest with your healthcare provider about how you are feeling. If you have frequent sad moods or ongoing worry, ask about counseling or mental health support.

Prevention

Yes, you can lower your risk. Wear long sleeves and trousers in grassy or wooded areas, use tick repellent on your skin or clothing, check for ticks after outdoor time, and shower soon after coming inside. Remove any attached tick right away.

Vaccines

Currently, there is no human vaccine for Lyme disease available everywhere. Some animal vaccines exist for pets, so ask your veterinarian about protecting your animals.

Screening programmes

There is no routine blood screening for people without symptoms. If you have had a tick bite, it is better to watch for symptoms and see a doctor if any appear.

Complications

If left untreated

• Lyme arthritis — swollen, painful joints, often in the knees
• Nerve problems such as numbness, tingling, or facial paralysis
• Heart rhythm disturbances or dizziness (Lyme carditis)
• Memory or concentration problems
• Chronic fatigue and muscle aches that can last for months

Long-term outlook

With early treatment, most people recover completely. Even if you develop complications, they can often be improved with treatment. Some people have lingering symptoms for a while, but many do get better over time. Follow your doctor's advice and stay in touch about any ongoing problems.

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