Have you had your husbandry reviewed yet? That might help determine what the bump is. Broken ribs can be the result of improper calcium and UVB. Please answer is as much detail as you can and post pics of the enclosure: https://www.chameleonforums.com/threads/how-to-ask-for-help.66/
Here are top 5 videos for new keepers to help get you started:
Chameleon Info:
Your Chameleon - The species, sex, and age of your chameleon. How long has it been in your care?
Veiled, Male, 5/6 months, had him two weeks. From FLCHAMS
Handling - How often do you handle your chameleon?
Couple days a week.
Feeding - What are you feeding your cham? What amount? What is the schedule? How are you gut-loading your feeders?
Crickets 15/day gut load with carrots, oranges, sweet potato
He has also had a few super worms.
Supplements - What brand and type of calcium and vitamin products are you dusting your feeders with and what is the schedule?
Repashy Calcium NoD daily.
Due for first dose of vitamin D3 today
Watering - What kind of watering technique do you use? How often and how long to you mist? Do you see your chameleon drinking?
Mist Mornings and evenings, do not see him drink.
Also run a dripper In mornings for a few hours.
Fecal Description - Briefly note colors and consistency from recent droppings. Has this chameleon ever been tested for parasites?
Poop looks good to me ?
Here is a photo from yesterday
History - Any previous information about your cham that might be useful to others when trying to help you.
Non that I can think of
Cage Info:
Cage Type - Describe your cage (Glass, Screen, Combo?) What are the dimensions
Reptibreeze 2x2x4
Lighting - What brand, model, and types of lighting are you using? What is your daily lighting schedule?
Arcadia 12% 24” UVB
BR30 incandescent flood light for basking
Temperature - What temp range have you created (cage floor to basking spot)?
Cage floor during the day is around 65
Runs up to about 70 as you go up.
Basking spots are in the 85-87 range
Lowest overnight temp? How do you measure these temps?
65 maybe? Just guessing here never got up at 2am and looked.
Humidity - What are your humidity levels? How are you creating and maintaining these levels? What do you use to measure humidity?
Humidity during daytime is 40-50 ish
live in Alabama it’s humid here.
At night before I got to be 10-11oclock
75-90%
Plants - Are you using live plants? If so, what kind?
Live- money tree and pothos
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?
Cage is in kitchen next to back door. No air vents blowing down on it, not a whole lot of traffic. The 4ft cage is 3ft off ground.
Location - Where are you geographically located?
North Alabama - USA
Current Problem - The current problem you are concerned about.
NOTICED this bump on his ribs when I got home from work. What got me looking him over was my wife said he was sitting under his basking light for a few minutes with with mouth open.