Lump behind armpit of Panther Chameleon


New Member
Medium tall vivarium.
Daylight blue 45w
Ceramic heat element
18” reptisun tropics
Humidifier 40-80% throughout the day and twice a day moistens for drinking.

Purchased as baby 11/4/18.
Not sure if it is a male or a female...

Picture one and two of lump behind armpit. Another view and from most recent shed. Feeding. Set up.

I read that too much phosphorous and or vitamin A could cause some swelling esp on organs and potentially on females carrying. However, not sure this one is old enough to carry if is a female.

I will cut out daily vitamin dusting and stick with minute cal d3.

Any thoughts on what the lump may be?


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Chameleon Info:
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  • Handling - How often do you handle your chameleon?
  • Feeding - What are you feeding your cham? What amount? What is the schedule? How are you gut-loading your feeders?
  • Supplements - What brand and type of calcium and vitamin products are you dusting your feeders with and what is the schedule?
  • Watering - What kind of watering technique do you use? How often and how long to you mist? Do you see your chameleon drinking?
  • Fecal Description - Briefly note colors and consistency from recent droppings. Has this chameleon ever been tested for parasites?
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  • Lighting - What brand, model, and types of lighting are you using? What is your daily lighting schedule?
  • Temperature - What temp range have you created (cage floor to basking spot)? Lowest overnight temp? How do you measure these temps?
  • Humidity - What are your humidity levels? How are you creating and maintaining these levels? What do you use to measure humidity?
  • Plants - Are you using live plants? If so, what kind?
  • Placement - Where is your cage located? Is it near any fans, air vents, or high traffic areas? At what height is the top of the cage relative to your room floor?
  • Location - Where are you geographically located?

Current Problem - The current problem you are concerned about.


New Member
After reading a lot of articles.. I plan to cut down on the amount of insects I am feeding as well as dust once a week alternating cal d3 two weeks to every one of vitamins.
So, not sure what to make of it all. This evening I didn’t notice the lump, but am keeping close eye on it. See picture.

I have had Magma since 11/4/18. The housing I currently use is a 18x18x24” glass vivarium. One Daylite Blue 45w ina dual fixture with a 60w ceramic heat element. One 18” reptisun tube for tropical animals.
I feed Magma a mixture of Dubai roaches and crickets. I guy load the Dubai with banana peels, oranges and acorn squash. The crickets get a formulated food found at local pet stores and calcium fortified water gels. I dust the food every time with either cal d3 or vitamins but not together. Last few days I’ve done strictly vitamins. Magma eats around 3 Dubai and 3 crickets a day. Or 5-7 crickets or Dubai. I try to alternate or combine crickets and Dubai. Magma was eating fruit flies regularly, 25-50 a day, for about one month along with a few crickets per week.
There are two ficus planted in an organic soil and three 4” pots with pothos also in the same organic soil. I hand must the foliage every morning and once in the evening. I see Magma lapping droplets from the leaves each time misting is applied. There is a humidifier which sits a foot or so in front of the house and will run periodically throughout the day.
The house is placed south facing beneath a window and gets partial sun each morning.
Humidity stays between 45-70 throughout the day. Temperature stays above 65 at night. And is 75 in the middle zone and 95-100 beneath the heating element.
Stool is dark brown with 1/5 to no less than 1/8 white. Regular. Every day.
I attempt to handle Magma every day but rarely, if ever, has it freely walked into my hand or fingers.
Let me know if I forgot something.
Thanks abunch everyone!


I highly recommend making your own gut load. Most of the store bought ones are good for your crickets but do nothing for your chameleon.
I'm not sure the age of your Cham but I think your basking is to hot for her age.


Chameleon Enthusiast
Agree with above^ A fresh, home made, and well balanced gutload is best but if that’s not for you Cricket Crack and Bug Burger are two commercially available gut loads that can satisfy all your gutloading requirements. I’ve used them both.


Chameleon Enthusiast
well the lump could be a number of things which is why she needs a vet but to me it looks like an abscess
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