In Pratt VM, McLeod HL, Rubinstein WS,  et al. (eds.). Medical Genetics Summaries. National Center for Biotechnology Information (NCBI). PMID 28520348. Bookshelf ID: NBK100660. External links
"Mercaptopurine". Drug Information Portal. U.S. National Library of Medicine.
Self-abuse may refer to:

Self-harm, the intentional, direct injuring of ones own body without suicidal intentions
Self-destructive behaviour, patterns of behaviour to inflict metaphorical or literal harm on oneself
Self-inflicted wound, harming oneself without psychological problems to take advantage of being injured

See also
Algolagnia, deriving sexual pleasure and stimulation from physical pain
Abuse § Self-abuse
Violence § Self-directed violence