Symptoms of Lyme Disease
British Columbia Specific Information
Ticks are tiny bugs which feed on blood. For information on ticks, removing ticks, and how to avoid being bitten, see HealthLinkBC File #01 Tick Bites and Disease. You may also be interested in the HealthLinkBC File #96 Insect Repellent and DEET.
While most tick bites do not result in diseases, some can. Some of the diseases passed on by ticks include relapsing fever, tularemia, Rocky Mountain Spotted Fever (RMSF), Q Fever and anaplasmosis. The most well-known is Lyme disease. For more information on Lyme Disease, visit BC Centre for Disease Control - Lyme Disease (Borrelia burgdorferi infection).
The first symptom of Lyme disease in most people is an expanding red skin rash (called erythema migrans or an EM rash). In about a third of people, the rash looks like a bull's eye, with a pale centre area surrounded by a bright red rim. The rash is often accompanied by flu-like symptoms, including:
- Fatigue (the most common symptom).
- Headache and stiff neck.
- Fever (which may be high in children, but this is rare).
- Muscle and joint pain.
About 20% of people have virus-like symptoms only (no rash) or have no symptoms at all.
If Lyme disease is not detected and treated while early symptoms are present, or if a person never has early symptoms that trigger the need for treatment, the infection may spread to the heart, the joints, the brain and spinal cord (nervous system), or sites on the skin.
Heart and nervous system problems may develop weeks to months after the initial infection, including:
- Pain, weakness, or numbness in the arms or legs.
- A gradual inability to control the muscles of one side of the face (paralysis of the facial nerves).
- Irregular heartbeat and shortness of breath.
- Severe headache and stiffness in the neck.
Damage to the joints, nerves, and brain may develop months to years after a person becomes infected, causing:
- Swelling, pain, or redness in the joints.
- Poor memory and reduced ability to concentrate.
- Numbness and tingling in the hands, feet, or back.
- Severe fatigue.
Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
Brian D. O'Brien, MD - Internal Medicine
Specialist Medical Reviewer Christine Hahn, MD - Epidemiology
Current as ofMay 22, 2015
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