What mental illness can cause hypersexuity other than bipolar?

Lots actually.. I personally have severe ADHD(although I'm on medication) and I have to remind myself to leave my bf alone sometimes haha..anyways there are probably too many to list but here are some..OCD, Depression in some cases, anxiety disorder, ADD, psychopathy, sociopathy, other narcissistic disorders, multiple personality syndrome, borderline...there are many more but I can't remember them all off the top of my head. If you need more I'm sure a simple google search will help you:)

sex addiction

Negative thinking or poor thinking or weak thinking or wrong thinking will do it.