Taking care of perineum

How can one take care of the perineum Does anyone have any knowledge about this part of the body being affected by excessive sitting in meditation. I have had medical help, removal of cysts, haemorrhoids and general stiffness over my course of meditative life. Is this a normal problem with meditators and if yes how can one take care of this? About me: I am male, late 20s(fairly young to be having problems in that region?), sit cross legged (no lotus or half lotus), use a simple block, have had a history of stomach ailments since 12 (appendicitis, liver repair, bad digestive system), currently simple wholesome diet with no meat, eggs, do not drink/smoke.