Saddle sores vary between individuals. However, a general description would be a sore, often raised area of skin in the region that makes regular contact with the saddle.
There is the ongoing debate of to have pubic hair or to not ? You can be in on of 2 camps - some say it protects and acts as a barrier- others that this is asking to get an infected follicle, when the hair grows back into the skin (Owch!)
Some saddle sores look a lot like spots and these are often caused by an infected hair follicle. Sores that look more like boils are usually larger and can be more painful. For some people, the main cause of pain is more likely to be abrasion caused by chafing.
So it is important that nothing is causing too much friction that your bottom will be on fire or that there are no sharp edges or seams on the seat.
Aggressive riders want a saddle that provides pressure relief at the front and those who tend to focus on more endurance rides will want more padding at the rear to suit an upright position. The width of the ideal saddle is usually determined by the width of your sit bones. Too wide a saddle and you will get a pinch point and too narrow a saddle and your bottom creases will rub - not serving for a great look !
Bathing, drying and treating are the main types of care, some swear by Sudo cream or similar. Making sure the area is dry and clean most importantly. Be very careful not to upset the delicate balance that is down there.
I really love and recommend ASSOS bum ride repair cream, specially for the lady riders.