The short answer is yes, it is something to be concerned about. It is typically and early symptom of MBD or other calcium deficiency. Can you go over your entire set up?
How old is your dragon?
How long have you had your dragon?
How long is your dragon?
What is the sex of your dragon?
What size enclosure do you have your dragon in?
What type substrate do you have on the bottom of your tank?
Do you use UVB lights?
If so, Is it a coil, compact, fluorescent tube, or Mercury Vapor bulb?
What is the brand name and number of your bulb? Wattage (if MVB)?
How old is your UVB bulb?
How close can your dragon get to the UVB?
Do you use a separate basking bulb? What kind and what is the wattage? Is it a white or colored bulb?
Di you have any type of night time heat source (ceramic heat emitter, colored bulb, etc)?
How long are lights on each day?
What are the basking temps?
What is the cool side temp?
What is the night time temp?
Do you take the temps with a stick on thermometer, a digital thermometer with a wire and a probe end or a temp gun?
Where exactly are you taking your basking temps?
Do you use a heat rock or heat pad?
What do you feed your dragon? Please be specific.
How often do you feed and what time do you feed (morning, afternoon, night)?
Do you gutload (feed) your crickets, worms, etc?
Do you use vitamin or calcium supplements? What brand(s)? How many days a week do you use each of them?
Is your dragon having regular bowel movements (poops)?
Do you bathe your dragon? How often?
Do you mist your dragon or offer water other than in the bath?
Have you gotten a vet check and fecal done?
Does your dragon share an enclosure with another dragon?
Yes, you should be very Concerned about it as it is a Symptom of MBD "Metabolic Bone Disease" which mean's your Beardies Bone are Softening and Deteriorating from not having the Proper and Correct UVB Lighting that is Needed to Produce Vitamin D3 whic his used to Absorb Calcium. Please answer the Above Poster's question's.