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Conditions
Almost every long-term condition affects sex twice — once through the condition itself, and again through the medicines used to treat it, by a completely different mechanism. Patients are told about neither. These pages separate the two and link straight through to the medicine classes involved, so the question you arrive with is answerable.
For almost every condition on this site, the condition and the medicines that treat it both affect sex — by different mechanisms, on different timescales, and with different answers. Being able to say which half you are asking about is the single most useful thing you can bring to an appointment, and it is the thing patients are least often given.
33 conditions with documented or frequently asked-about sexual effects, grouped by system. These pages describe what a diagnosed condition tends to do — they cannot tell you whether you have one.
Educational information about what a diagnosed condition tends to do — not a diagnosis, not a way to work out whether you have something, and not advice about your treatment. Conditions on this page overlap, and most people with a long-term condition have more than one thing affecting them at once. Nothing here can examine you or run a test. Pain, bleeding, or a new and unexplained symptom always deserves assessment.