What does the skin look like after a tick bite in a person? - briefly
A tick bite typically leaves a tiny, red, raised spot that may appear as a solid papule or a concentric, target‑shaped lesion with a central puncture mark. The surrounding skin can be slightly swollen and may develop a rash if an infection such as Lyme disease is transmitted.
What does the skin look like after a tick bite in a person? - in detail
A tick attachment creates a small, often circular lesion at the bite site. The initial mark is usually a raised, red papule or wheal measuring 2‑5 mm in diameter. A pinpoint puncture, the tick’s mouthparts, may be visible in the centre. Surrounding erythema can be uniform or slightly irregular, and the skin may feel warm to the touch.
Within 24‑48 hours the lesion often enlarges slightly. The border may become more defined, sometimes forming a target‑shaped pattern with a central clearing surrounded by a brighter ring. This “bull’s‑eye” appearance is characteristic of early Lyme disease but can also result from a simple local reaction. The colour may shift from pink to deep red or purplish, especially in individuals with darker skin tones.
If an allergic response occurs, the area can swell markedly, develop hives, or become itchy. Secondary bacterial infection produces pus, increased tenderness, and possible crust formation. In rare cases, a necrotic centre appears, indicating a more severe local reaction.
Typical progression:
- 0–12 h: Small, red papule; possible central punctum; mild tenderness.
- 12–48 h: Expansion to 5–10 mm; clearer borders; possible target pattern.
- 48 h–1 week: Stabilization or gradual fading; may persist as a faint scar.
- Beyond 1 week: Resolution in most cases; persistent erythema or expanding rash warrants medical evaluation.
Key visual cues for concern:
- Rash enlarging beyond 5 cm or spreading outward.
- Central clearing with a bright outer ring.
- Persistent fever, joint pain, or fatigue accompanying the skin change.
- Signs of infection: pus, increasing pain, or foul odor.
Prompt removal of the tick and inspection of the bite area are essential for accurate assessment and timely treatment.