Cov cuab yeej siv kho mob huv si yog siv los tsim cov koob txhaj tshuaj, cov hnab ntim tshuaj thiab lwm yam khoom siv pov tseg.Kev tuav kom huv huv chav ib puag ncig yog qhov tseem ceeb los ua kom cov khoom siv kho mob zoo.Cov kev ntsuas tseem ceeb suav nrog kev tswj cov txheej txheem tsim khoom los tiv thaiv kev sib kis thiab ua raws li cov qauv kev cai.Nws yog ib qho tseem ceeb uas chav huv yog tsim kom raug los xyuas kom meej tias nws ua tau raws li ib puag ncig tsis zoo, thiab kev saib xyuas tsis tu ncua yuav tsum tau lees paub tias chav huv huv raws li kev tsim thiab kev siv.
