How does a tick bite with Lyme disease look? - briefly
A Lyme‑infected tick bite usually appears as a red, expanding rash with a clear central zone, commonly described as a «bullseye», developing 3‑30 days after the bite. The area may be warm, mildly itchy, and can be accompanied by flu‑like symptoms such as fever, headache, and fatigue.
How does a tick bite with Lyme disease look? - in detail
A Lyme‑associated bite typically begins with a red macule at the attachment point. Within 3–30 days the lesion enlarges, forming a circular or oval erythema that often reaches 5–15 cm in diameter. The outer margin remains sharply demarcated, while the centre may appear paler, creating a characteristic “bull’s‑eye” pattern. Color ranges from bright crimson to pinkish‑purple; the rash is usually flat, but can become slightly raised at the edges.
Adjacent skin often shows mild edema and a sensation of warmth. Itching and tenderness are common, though the area may be painless in early stages. The tick itself is usually still attached or recently detached; an engorged, dark‑brown or grayish abdomen indicates prolonged feeding (typically >24 hours). Common attachment sites include the scalp, neck, armpits, groin, and the flexor surfaces of the limbs.
Systemic manifestations do not alter the visual appearance of the rash, but their presence can confirm infection. Fever, chills, headache, and muscle aches may develop concurrently with the expanding erythema.
Key visual indicators:
- Red macule that expands into a large, circular rash
- Sharp peripheral border with central clearing (“bull’s‑eye”)
- Size exceeding 5 cm, often 10 cm or more
- Mild swelling and warmth around the lesion
- Recent or still‑present engorged tick at the centre
Recognition of these features enables prompt diagnosis and treatment of Lyme disease.