Self-injurious and aggressive behaviour

Self-injurious behaviour refers to non-accidental behaviours that have the potential to cause damage, such as reddening of the skin, bruising, bleeding, hair loss, etc. Self-injurious behaviour is common in individuals with CdLS and includes behaviours such as self-hitting, head banging or self-biting, although it is not an inevitable consequence of the syndrome. 

Some behaviours shown in CdLS can be identical to self-injurious behaviour but do not cause any bodily damage. These behaviours may develop into self-injurious behaviour over time.