![]() ![]() Lyme disease is caused by borrelia bacteria. Shown from left to right is the adult female, adult male, nymph and larva on a centimeter scale. The deer tick (Ixodes scapularis) goes through three life stages. If they show up, see your care provider as soon as possible. If you know you had a tick bite or might have been around ticks, watch for symptoms. An early diagnosis and proper treatment can improve outcomes. See your health care provider if you have Lyme disease symptoms. And many symptoms of Lyme disease relate to other conditions. Most people who get Lyme disease don't remember having a tick bite. This skin condition may show up many months to many years after a tick bite. More-serious cases may cause damage to tissues or joints. It also may show up over the elbows and knees. The skin on the backs of the hands and tops of the feet get discolored and swell. The type of Lyme disease common in Europe can cause a skin condition called acrodermatitis chronic atrophicans. ![]() Stage 3 symptoms usually begin 2 to 12 months after a tick bite. Pain, swelling or stiffness may last for a long time. In the United States, the most common condition of this stage is arthritis in large joints, particularly the knees. This stage is called late disseminated disease. In the third stage, you may have symptoms from the earlier stages and other symptoms.
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