17847 Bedbugs

Overview

Bedbugs are tiny, flat insects that feed on human blood, usually at night. Their bites can cause itchy red welts, but bedbugs are not known to spread serious disease.

Bedbug infestations have become more common worldwide in recent years, especially in cities, hotels, and places where many people share living spaces.

Anyone can get bedbug bites. They are particularly common among travelers, people living in shared buildings, and those who bring in second-hand furniture or bedding.

Symptoms

Common symptoms

• Small, red, itchy welts on the skin, often in lines or clusters
• Welts on areas exposed at night, such as the face, neck, arms, and hands
• Itching that may be worse at night
• Sometimes small blood spots or dark specks on bedding

Symptoms in children

• Children can develop the same red, itchy welts, but they may be more noticeable because young skin is sensitive.
• Scratching can break the skin and lead to sores or infection.

Symptoms in older adults

• Older adults may have less obvious bites, but scratching can more easily damage thinner skin.
• They may be more likely to develop a skin infection if bites are scratched.

Causes

Main causes

• Bites happen when bedbugs feed on exposed skin, usually at night.
• Bedbugs are brought into homes most often through luggage, clothing, or used furniture.
• They do not fly or jump; they crawl and spread through cracks and fabric.

Risk factors

• Staying in hotels, hostels, or other accommodations where bedbugs may be present
• Buying used mattresses, sofas, or furniture without inspecting them first
• Living in multi-unit buildings where bedbugs can travel between rooms
• Clutter that gives bedbugs more places to hide

When to see a doctor

See a doctor urgently if:

• If bite areas become very red, swollen, painful, or ooze fluid (possible infection)
• If you have a fever or feel generally unwell with the bites

Book a routine appointment if:

• If itching is severe or not relieved by basic measures
• If you are unsure whether the bites are from bedbugs and want them checked

Diagnosis

A doctor or nurse usually diagnoses bedbug bites by looking at the areas and asking about your sleeping and travel history. The only way to confirm the cause is to find a bedbug or its signs.

Tests that may be done

• No blood test is needed for bedbugs.
• Your doctor may ask you to check your mattress and furniture for small dark spots, shed skin, or the insects themselves.
• In some cases, a photo of the insect or mark can help confirm.

What to expect at your appointment

The appointment is usually quick. The doctor will examine the bites, discuss how to manage the itching, and tell you when to seek help if things change. They may also suggest how to check your home for bedbugs.

Treatment

Treatment for bedbug bites focuses on relieving itching and preventing infection. Meanwhile, the home must be treated to get rid of the insects — usually with careful cleaning and, often, professional pest control.

Self-care at home

• Wash the bites gently with mild soap and water.
• Place a cool, damp cloth on the bites for short periods to ease itching.
• Keep fingernails short and avoid scratching as much as you can.
• Wash bedding and clothing in hot water and dry on a high heat setting.
• Vacuum mattresses, furniture, and floors carefully, and seal and dispose of the vacuum bag.

Medical treatments

For severe itching, a doctor may recommend an anti-itch cream, an oral allergy medicine, or, if an infection develops, an antibiotic. Ask your pharmacist or doctor which option is appropriate for you.

When is surgery considered?

Surgery is not needed for bedbug bites.

Living with this condition

During an infestation, daily habits matter: keep bedding clean, reduce clutter, inspect your sleep area regularly, and communicate with your landlord or neighbors if you live in shared housing.

Lifestyle tips

• Use a bedbug-proof mattress and box-spring cover.
• When traveling, inspect hotel beds and keep luggage off the floor.
• After returning home from a trip, wash and dry clothes on high heat.
• If you have bedbugs, avoid moving items between rooms before they are cleaned.

Diet and exercise

No specific diet or exercise is needed for bedbug bites, but eating well and staying active can help you manage stress and maintain overall health.

Mental health and emotional wellbeing

Having bedbugs can be very stressful. It is common to feel anxious, embarrassed, or unable to sleep. These feelings are normal, and seeking support is a healthy step.

Prevention

You can reduce the risk by checking hotel beds for signs of bedbugs, inspecting second-hand furniture before bringing it inside, using protective covers on mattresses, and reducing clutter where bedbugs can hide.

Vaccines

There is no vaccine for bedbugs.

Screening programmes

There is no routine screening test. The best approach is to check for signs of bedbugs in your sleeping area and to act quickly if you think you have them.

Complications

If left untreated

• Skin infections from scratching, such as impetigo
• Rarely, a severe allergic reaction to bites
• Sleep loss, anxiety, and stress during an infestation

Long-term outlook

With careful cleaning, simple itch relief, and — if needed — professional pest control, bedbugs can be eliminated. Bites usually heal within one to two weeks, and serious complications are very rare. Staying calm and taking it step by step is the most effective way forward.

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