automanipulation
/ˌɔːtə(ʊ)məˌnɪpjʊˈleɪʃn/noun
1 Medicine. Manipulation of a part of one's own body; especially reduction of a hernia or dislocation by oneself.
2 Psychology and Medicine specifically = masturbation.
3 Psychology. Repeated fingering of the face, hair, or other part of the body, or of a small object, especially as a signifier of social stress or anxiety in children.
Origin
Late 19th century; earliest use found in The Medical Record. From auto- + manipulation.