My boyfriend is worried that when he ejaculates, he only ejaculates a small amount ( a 10 cents amount) is this normal?

2-5 mls: I don't know what a "10-cent" amount is - most men ejaculate 2-5 milliliters at a time. Is he on any medication that could reduce the volume of his ejaculate by affecting his prostate (eg a 5-ari) or pelvic smooth muscles (eg an alpha-blocker)?

Men and Semen: The amount of ejaculate will vary for a number of reasons to include hydrations status, time since last ejaculation and a variety of other common situations. Without other symptoms there is nothing in your question to alert me to a medical problem.

Variabl: .1-10mm range normal.