cracking sound in joints

[pooja17]

whenever i sit down and bend my knees, there is a cracking sound and its so loud that people arond me start looking at me and i feel quite embarassed...though i dont feel any pain. plz tell me how to stop this sound.

[Dr. Kokil Mathur]

Hi
Welcome to the MedHelp forum!
While exercising or walking, you have probably injured your medial meniscus of the knee or injured your patella. Another possibility is the knee cap rubbing against the underlying cartilage of femur. Having said this, at times the noise has no pathology behind it. This needs an evaluation by either an orthopedics specialist or by a sports injury specialist.
It is difficult to comment beyond this at this stage.  Please let me know if there is any thing else and do keep me posted. Take care!

[Londres70]

Sounds like you have crepitus, but you sure are too young to be having this.  I would recommend having your knees examined by a physician.  

Have you had any injuries to your knees recently or in the past?  

[loved29]

I get this too. but i don't know what it is. if you find out i'd be interested. i think it may be something to do with our knee caps. i think the back of peoples kneecaps are generally smooth and ours are rough. but i don't know for sure. i used to get it a lot more when i was younger, teens to early twenties and sometimes it hurt too. a few of my family have it. i hope you find out