How stressed is your husband on a daily basis? Also, does he do abdominal workouts? Hot water, and heat in general, helps relax the muscles. If his muscles are extremely tense, or have been stressed from workouts, the cramping could be from the release of the lactic acid that builds up in tensed muscles.
I would recommend he start drinking lots of water after his showers, and try to flush the lactic acid out of his system. He should also drink a LOT of water during the day, as well as during and after exercising. After doing this for a while the built up stores of lactic acid will go away, and he might be able to tolerate more warmth when he takes a shower.
good luck,
~Dame
THE WARMNESS OF RUNNING WATER HELPS YOUR BOWELS PASS THROUGH YOU INTESTINTS. WHEN MY SON WAS CONSTIPATED THE DR TOLD ME TO LET HIM SIT IN WARM WATER TO SEE IF IT WOULD PASS.IT WORKED. HOPE THIS WAS HELPFUL INFO
The "stimulation" is probably from the stress mentioned by dame_wilbur. He does have other gut issues, and they come and go without any pattern. I suspect lactose intolerance, but the IBS makes sense in his situation. Thanks very much!
Welcome to the MedHelp forum!
If your husband’s gut is getting irritated and cramping due to stimulation of the abdomen, then he could be having IBS. In this case he must also be having other gut related issues such as constipation or loose stools or gas or bloating.
It is difficult to comment beyond this at this stage. Take care!