It is understandable to be concerned about a house lizard bite, but these incidents are generally not fatal. While a bite is a rare occurrence and typically harmless, it can cause minor discomfort.
Are House Lizard Bites Fatal?
Common house lizards are not venomous. This means they do not produce or inject toxins that could lead to poisoning or death in humans. Their primary defense mechanisms involve escape behaviors rather than venom. Their bites can cause minor skin irritation or a small break in the skin.
The main concern following a bite from a house lizard is the potential for a bacterial infection, similar to any other minor cut or scratch. Reptiles, including house lizards, can carry bacteria like Salmonella on their skin or in their mouths. However, serious complications from such infections are extremely rare. In contrast, genuinely venomous reptiles, like Gila monsters or certain snakes, possess specialized glands and fangs to inject venom, which can cause severe symptoms and, in some cases, be life-threatening. House lizards lack these venom-delivery systems.
What to Do After a Bite
If a house lizard bite occurs, immediate first aid is important to prevent potential minor issues. Begin by thoroughly cleaning the wound with soap and water to remove any debris or bacteria. Following cleaning, apply an antiseptic solution or ointment to the area to further prevent infection. Covering the wound with a clean bandage will help protect it.
After the initial care, it is important to monitor the bite for any signs of infection. Signs of infection include increased pain, swelling, redness, warmth, pus draining from the wound, or a fever. If any of these symptoms develop, or if the bite is particularly deep or bleeding excessively, seeking medical attention is recommended. A medical professional can assess the wound and determine if further treatment, such as antibiotics or a tetanus booster, is necessary. Serious complications from house lizard bites are exceedingly uncommon.
Minimizing Encounters
To reduce the likelihood of encountering house lizards indoors, several practical steps can be taken. Sealing cracks and gaps in walls, around windows, and under doors can prevent lizards from entering your home. Ensuring that window and door screens are intact and properly fitted also helps block entry points.
Reducing their food sources, primarily insects, is another effective strategy. Keeping your house clean and tidy, promptly cleaning up food scraps, and regularly disposing of garbage will minimize insect populations, making your home less attractive to lizards. If a lizard is found indoors, gently encouraging it to leave by guiding it towards an exit with a broom or piece of cardboard is advisable, avoiding direct physical contact to prevent a defensive bite.