I'd agree that you should include as many possible - and also, keep brief details of all treatments received on the reverse side of the card just in case anything crops up at the next appointment (and also as a customer care initiative - "How did you get on after your cellulite treatment last month?" or, for retail sales, "I see you had a moisturiser two months ago - you must have nearly run out by now! Have you seen this new product?")
However, the most important thing is that you get the client to read over the full card every time they visit to check for any changes - I doubt that many will remember what they ticked last time, and it literally takes them a few seconds to glance over it. Alternatively, just read through it with them - again, this might be an opportunity to show off your expertise on treatments for particular conditions that might contra-indicate.
From my own experiences, and those of my wife, there have been many occasions where the card has been completed by a client and then completely disregarded it - they didn't know my wife had had a C-section three months earlier at one award-winning salon last summer because the therapist hadn't read the card.