Health Library
The Health Library is a collection of health and wellness resources created for learning and accessibility. Select a topic below for related health information or search for a topic in the search bar for more information on other medical conditions.
Tick Bites
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Insect and spider bites often cause minor swelling, redness, pain, and itching. These mild reactions are common. They may last from a few hours to a few days. Home treatment is often all that's needed to relieve the symptoms of a mild reaction to common stinging or biting spiders and insects, such as fleas, flies, and...
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The inability to move a part of your body (paralysis) as a result of a tick bite is a rare problem. Tick paralysis can be caused by several different types of ticks in North America. The symptoms of tick paralysis are caused by the venom secreted from the female tick during feeding. Symptoms usually start 4 to 7 days...
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Many of the diseases ticks pass to humans can cause flu-like symptoms, including: Fever. Headache. Muscle aches (myalgia). A general feeling of illness (malaise). Nausea and vomiting. Diseases ticks may pass to humans include: Lyme disease. Symptoms usually start 1 to 4 weeks after the tick bite, with up to 90%...
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Ticks are small spiderlike animals (arachnids) that bite to fasten themselves onto the skin and feed on blood. Ticks live in the fur and feathers of many birds and animals. Tick bites occur most often during early spring to late summer and in areas where there are many wild animals and birds. Most ticks don't carry...
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Most ticks do not carry diseases, and most tick bites do not cause serious health problems. But it is important to avoid and check for ticks, and to remove a tick as soon as you find it. Removing the tick completely may help you avoid diseases such...