Moti in the neck is fine. Ketu mahadasha is going on and antardasha of Mercury. Ketu mahadasha will complete in January 2016. Ketu in transit will enter Aquarius in January 2016 which is the 8th house as per his horoscope. Ketu in 8th house is not good. Therefore he should be careful while driving, on the road, while catching bus, working with sharp tools. Urine related problems can be there.