Bedbugs (Cimicosis)

Bedbug Bites

Overview

Bedbug bites are caused by Cimex lectularius, small parasitic insects that feed on human blood, typically at night. The bites produce itchy, red welts that often appear in clusters or linear patterns ("breakfast, lunch, and dinner" pattern). Bedbugs do not transmit diseases but can cause significant discomfort, secondary infection from scratching, and psychological distress.

Key Symptoms

• Itchy, red, raised welts or papules on exposed skin
• Bites often in clusters or linear rows of 3 or more
• Commonly found on arms, legs, face, and neck
• Delayed reaction — bites may not appear until days after exposure
• Central punctum (bite mark) may be visible
• Secondary excoriation and infection from scratching

Affected Areas

Arms, Legs, Face, Neck, Hands, Any exposed skin during sleep

Care Instructions

1. Wash bites gently with soap and water to reduce infection risk.
2. Apply over-the-counter hydrocortisone cream or calamine lotion to relieve itching.
3. Take oral antihistamines for significant itching.
4. Avoid scratching to prevent secondary bacterial infection.
5. Professional pest extermination is essential to eliminate the infestation.
6. Wash all bedding and clothing in hot water and dry on high heat; inspect and treat mattresses and furniture.

Medical Disclaimer: This information is for educational purposes only and does not replace professional medical advice. Always consult a qualified dermatologist for diagnosis and treatment.

Prevalence: Increasingly common worldwide; infestations have risen significantly in urban areas over the past two decades