 [ Symptoms ] i had a disc removed  l2 pain in my lower back has never improved [ Disease ] you will need to have him checked but not all testes on children or men for that matter are the same some due hang low and loose so perhaps this is just a normal variation i would not immediately feel that this would be an indication of something wrong hi you say change of climate is this low hanging when its warm to hot if that is the case then your find all men and boys we do that its how they cool down and when its cold or been in swimming then they go up tight unless he is are still hanging down in cold conditions then yes there could be a problem and be looked at so if its hot there down if its cold there up like this he is just normal do hope this helps good luck