Psoriatic arthritis affects some people with psoriasis. It is a chronic inflammatory disease affecting the joints, causing painful, stiff or swollen joints.
Male sexual dysfunction, also called erectile dysfunction or impotence, is characterised by a man not being able to get or maintain an erection for sex.
Constipation is a gastrointestinal condition characterised by lack of regular bowel movements. It may lead to anorectal disorders or diverticular disease.
Stress or anxiety is a common condition. A person feels too much demand, because of their life circumstances or putting too much pressure on themselves.