Other bodily fluids:[1]
The rule is that all bodily fluids that are viewed as repulsive and dirty require the hands to be cleaned from them upon touching it, prior to learning Torah or reciting Hashem’s name. The following is a general list of fluids and their law:
Blood: Plain blood does not need to be cleaned off the hands. However blood of an infected wound requires cleaning. A Rav who looks at a Maarah is required to clean his hands if the cloth was dirty in addition to the blood.
Bandage: Touching a dirty bandage requires cleaning of the hands.
Puss: Touching the puss of a wound or pimple requires the hands to be cleaned
Tears: Touching tears do not require the hands to be cleaned.
Mucus of the eyes: Touching mucus of the eye does not require the hands to be cleaned.[2]
Saliva: Some[3] rule that touching saliva does not require the hands to be cleaned. Others[4] rule saliva is disgusting and hence requires the hands to be cleaned.
Feces: Touching feces requires the hands to be cleaned.
Urine: Touching urine requires the hands to be cleaned.
[1] Piskeiy Teshuvos 4:29
[2] Oar Letziyon 2:1-11
[3] Ashel Avraham Butchach 4; M”B 97:7; Mahrsham 3:14; Tiferes Adam brought in Toras Yekusiel 1:9
[4] Minchas Elazar 3:54