Common limits include:

blood

disease transmission (aka unsafe sex)

piss/shit (also called golden showers/water sports and brown showers/scat)

feeling claustrophobic or feeling too exposed

feeling worthless/humiliated

feeling unsafe or being afraid of your partner (even in a play context)

physical marks, physical marks in some places

pain, certain types of pain, pain in certain places, pain past a certain level of intensity

triggers – anything that reminds you of a past traumatic event

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