Is there a tendancy to pass urine during the surgery ? What do you mean by cleaning?
After the surgery what do they do?
Fo they carry patient to the ward or keep in a special room ?
නැගිට්ටම විකාර කියෙව්ව කියල උබ දන්නෙ නෑනෙ ඉතිං

මම දැක්කා එක වීඩියෝ එකක කෙල්ලෙක් නර්ස්ව ඉබින්නත් යනවා. පිස්සු විකාර ගොඩයි යකූ
yeah there is a possibility of passing urine & stools, but the theatre staff will clean your body after the surgery before sending you out. so no need to worry.
yeah in most theatres there is a separate recovery area where they will monitor you for a short period of time before sending you to the ward
විකාර is due to "Ketamine" a drug they used some time back, Ketamine is very reraly used now days. so most probably you will not go through විකාර phase.
basically your experience will be like this.
You will have to keep fasting, in most cases for 6 hours( may change according to your surgery)
you will be taken to the theatre.
anesthetic team will ask you several questions ( when did you had your last meal, any allergies, any other medical conditions you are having etc)
once they are happy you will be taken to the theatre bed.
you will be given a intravenous drug
you will have the best sleep in your life
provided everything went smoothly you will wake up after the surgery in the recovery area, but you will be still sleepy & you will be sent to the ward.
there you will be fully awake