How do you know if a cockroach is poisonous?

Cockroaches are generally not considered poisonous to humans. They can, however, carry allergens and pathogens due to their scavenging habits, which may lead to health issues if ingested or through contact. If you suspect a cockroach is poisonous, it’s best to avoid handling it and consult pest control professionals for identification and management. Always maintain cleanliness to minimize their presence and potential health risks.