Do bed bugs carry diseases?

Updated on: 12/06/2026

Key takeaways:

• Bed bugs are not known to transmit diseases to humans.
• Pathogens have been found on bed bug bodies, but none have spread to people.
• Bites can cause itching, welts, and in rare cases, allergic reactions.
• Scratching bites can lead to secondary skin infections requiring medical attention.
• Infestations can cause sleep disruption and emotional stress beyond physical symptoms.

Bed bugs are a growing concern for homeowners across the country, and worries about bed bug diseases are understandable. While diseases caused by bed bugs haven't been documented in humans, that doesn't mean an infestation is risk-free. Bites can still cause real discomfort, and in some cases, more serious reactions. Read on to find out what the health risks actually are.

Can bed bug bites make you sick?

Although bed bugs don’t transmit diseases, there are still several risks associated with having a bed bug infestation or getting bitten by bed bugs. Bites can cause different reactions in everyone. That means while some people experience mild symptoms, other people might experience very serious symptoms. When bites are irritated or scratched at, welts can form. In very serious cases, this could expose wounds to secondary skin infections. Another rare but possible symptom is an allergic reaction. In any case, serious health concerns with bed bugs should always be addressed by your doctor.

For more details on how to identify and care for bites, visit our bed bug bite guide. If you have any concerning symptoms, always speak to a healthcare professional.

How to mitigate the health risks of bed bug bites

If bed bug bites are causing discomfort, avoid scratching, as it can break the skin and lead to secondary infections. Clean the area with soap and water and apply a mild anti-itch cream to ease irritation. Most bites resolve on their own within a week or two.

If you experience signs of an allergic reaction or a bite becomes infected, consult a healthcare professional. The best way to reduce bite-related health risks is to tackle the infestation itself. Our bed bug control services can help.

How to prevent bed bugs

Stay vigilant to help prevent bed bugs in the home, especially after travel or buying secondhand items. A few simple habits can help:

• Inspect hotel rooms, including mattress seams and bed frames, before settling in.
• Check secondhand furniture and clothing before bringing them indoors.
• Use mattress encasements to limit hiding spots and make activity easier to spot.
• Wash bedding regularly at high heat. 140°F or above kills bed bugs at all life stages.

If you suspect an infestation is already underway, a professional bed bug inspection is the best next step.