Expert Q & A Answers About ankylosing spondylitis and exercise

My husband’s ankylosing spondylitis sometimes makes orgasms extremely painful for him. What can we do to enjoy sex?

My husband is 43, and he has ankylosing spondylitis. While our sex life is good, sometimes his orgasms cause him severe pain in his groin area, which can make him ill (diarrhea, vomiting, back pain, etc.) for days. This makes it difficult for either one of us at times to enjoy sex because he/we never know what the end result will be. As long as he stays active, the pain stays minimal but the sex is always a surprise as to whether or not it's painful. I want to help him so we can really enjoy sex, not be punished because of it. Can you help?