The brown widow spider (Latrodectus geometricus) is a lesser-known cousin of the infamous black widow. While it belongs to the same genus, it is considered less aggressive and less dangerous. Still, its bite can cause discomfort and mild health effects. Knowing what a brown widow bite looks like, how to treat it, and how to avoid it can help you stay safe.
What Is a Brown Widow Spider?

The brown widow spider is usually light brown to tan with darker markings. One of its most noticeable features is the orange or yellow hourglass shape on the underside of its abdomen. Unlike the black widow’s shiny black body, the brown widow has a duller, patterned appearance.
These spiders are commonly found in warm areas like Florida, California, and tropical regions worldwide. They prefer hidden, sheltered spots such as under outdoor furniture, mailboxes, plant pots, and fences.
Is the Brown Widow Spider Bite Dangerous?
The venom of the brown widow is toxic but not as strong as the black widow’s. Scientists believe that brown widows inject less venom and are less likely to bite unless provoked. Most bites are considered medically mild. While pain and discomfort are possible, life-threatening reactions are rare.
Children, the elderly, and those with weak immune systems should still be cautious, as their bodies may react more strongly to spider venom.
Symptoms of a Brown Widow Spider Bite

Immediate Symptoms
- Sharp pain at the bite site
- Redness and swelling
- A burning or stinging sensation
These symptoms usually begin within minutes of the bite and may last for a few hours.
Delayed Symptoms
- Itching or tingling
- Mild muscle stiffness near the bite
- Feeling tired or unwell
These symptoms are less common and usually go away with rest and simple care.
Severe Reactions (Rare)
- Muscle cramps or spasms
- Headache or nausea
- Sweating or rapid heartbeat
Severe reactions are uncommon but require medical help.
4 Stages of a Brown Widow Spider Bite

Stage 1: Initial Pain and Redness
The first stage involves mild to moderate pain, with redness forming around the bite. The spot may feel warm and slightly raised.
Stage 2: Swelling and Discomfort
Over the next few hours, swelling may increase. The area can become itchy or tender. You may notice a small blister or bump.
Stage 3: Possible Systemic Reaction
In some cases, symptoms spread beyond the bite. You might feel tired, dizzy, or get a headache. These effects are usually mild.
Stage 4: Healing and Scabbing
After 1–3 days, the bite starts to heal. A scab may form and fall off within a week. Most bites leave no scar.
What to Do If Bitten by a Brown Widow Spider
Immediate First Aid
- Wash the bite with soap and warm water to avoid infection
- Apply a cold compress for 10–15 minutes to reduce swelling and pain
- Keep the bite area elevated to slow down venom spread
- Avoid scratching to prevent skin damage or infection
When to Call a Doctor
- If the pain gets worse over time
- If you see pus, red streaks, or swelling that spreads
- If you have a fever, chills, or muscle cramps
- If the person bitten is a child, elderly, or has allergies
Possible Medical Treatments
Doctors may recommend:
- Pain relief medications like ibuprofen or paracetamol
- Antibiotics if the bite becomes infected
- Antihistamines for itching or swelling
- In rare cases, a tetanus shot or stronger medication may be needed
Brown Widow vs Black Widow Bite (Comparison Table)

Feature | Brown Widow | Black Widow |
---|---|---|
Venom Strength | Mild to moderate | Strong and neurotoxic |
Bite Pain Level | Mild to moderate | Severe and cramping |
Common Symptoms | Redness, swelling, itching | Muscle cramps, sweating, nausea |
Danger Level | Low | High (especially for vulnerable groups) |
Medical Attention Needed | Sometimes | Often necessary |
Behavior | Shy, defensive | Shy but more dangerous |
Hourglass Color | Orange or yellow | Bright red |
How to Prevent Brown Widow Spider Bites
Home Safety Tips
- Keep outdoor furniture, grills, and toys clean
- Seal cracks and crevices in doors, windows, and walls
- Shake out shoes, gloves, and clothing before wearing
- Use screens on windows and doors
Outdoor Precautions
- Be cautious in storage areas, sheds, and under benches
- Wear gloves when gardening or handling firewood
- Avoid disturbing spider webs or egg sacs
Natural Repellents
- Vinegar and citrus peels can deter spiders
- Essential oils like peppermint or eucalyptus work as mild repellents
- Regular cleaning and vacuuming discourage spider hiding spots
Conclusion
A bite from a brown widow spider may cause mild pain, swelling, and discomfort but is rarely serious. Knowing the symptoms and how to care for the bite can help prevent problems. Most people recover quickly with simple first aid. Taking preventive steps around your home and garden can reduce the chance of being bitten in the first place. Stay aware, but don’t panic — brown widow spiders are shy and usually bite only when disturbed.