My 5yo daughter had hip x-ray. technician only covered her chest. he did not cover her reproductive organs. are there any risks because of that?

Very small: Due to the location being x-rayed, it would be impossible to cover her reproductive organs. That being said, the amount of radiation used in a hip x-ray is minuscule, and your daughter's overall risk is vanishingly small. A typical hip x-ray carries about 0.001 mSv (milliseverts) radiation exposure. For comparison, a transcontinental flight carries about 50 mSv. Hope this helps!

The risk is VERY low: The risk from a single x-ray to the hip and pelvis is VERY low. To put it into perspective, a singe hip film gives about 0.7mSv (millisieverts are the units used to measure radiation dose). Just living on planet earth for a year exposes the average person to about 2.4mSv depending where on earth you live. Hope that helps.