noun
self-check; self-examination
Wasei-eigo from English 'self check'. Used for checking one's own body for signs of illness or abnormalities, such as breast self-exams or skin checks.
wasei-eigo (Japanese-coined English), from self check
毎月、乳がんのセルフチェックをしています。
I do a breast cancer self-check every month.
皮膚のセルフチェックでほくろの変化に気づいた。
I noticed a change in a mole during a skin self-examination.