What does the site where a tick has entered look like? - briefly
The entry site appears as a small, raised erythematous spot, typically 2–5 mm in diameter, often showing a central punctum where the tick’s mouthparts remain. A faint halo of redness may surround the bump, and the area can be tender or itchy.
What does the site where a tick has entered look like? - in detail
The attachment area typically presents as a small, raised nodule measuring 2‑5 mm in diameter. The central point often shows a punctate opening where the mouthparts remain embedded, occasionally visible as a tiny dark dot. Surrounding the core, the skin may exhibit erythema that ranges from faint pink to vivid red, depending on individual sensitivity. In some cases, a halo of slightly lighter skin surrounds the reddened zone, creating a concentric pattern. The texture of the lesion can feel firm to the touch, with the surrounding tissue sometimes slightly warm.
Additional characteristics may include:
- A clear or serous fluid accumulation under the epidermis, producing a subtle swelling.
- Minor itching or a tingling sensation localized to the site; systemic symptoms are uncommon at this stage.
- Absence of extensive bruising or necrosis unless secondary infection occurs.
If the tick remains attached for several days, the nodule may enlarge to 5‑10 mm, and the central punctum can become more pronounced, sometimes revealing the tick’s legs protruding from the skin. The surrounding erythema may expand, forming a broader annular rash, especially in individuals prone to allergic reactions. Persistent inflammation beyond a week warrants medical evaluation to rule out secondary infection or early signs of tick‑borne disease.