"Although many victims of domestic violence resist reporting the violence, male victims have particular issues that most female victims don't have to contend with. Often victims of any gender don't want to report because they are embarassed, or they are afraid of making the problem worse (when so-and-so gets out of jail they're going to be REALLY mad at me), or they don't want the abuser arrested (for many reasons). Male victims have to contend with "machismo" - what their friends and family will think if it is discovered that they "let" a partner abuse them. There is also an element of total disbelief - not only from the victim, but sometimes confirmed by friends, family, police, and medical personnel - especially when those persons are also male - as victims are unwittingly, yet strongly, encouraged to minimize the importance and impact of what they experienced. Injuries may be played down; "it's only a scratch you big baby", or "what are you complaining about you big wuss". Trying to report once, and meeting this reaction is a primary function of why so many men never report again, or never report at all. Instead, just like female victims, they'll make excuses, try to escape being around the abuser by dedicating their time to work or other pursuits, or, simply not have to acknowledge any injuries, because unlike women, men are often semi-expected to occasionally have some minor injuries here and there caused by "normal male activities" like battling errant hedges, falling off roofs, and other side effects of "typical" recreational and household activities of males in relationships."
http://www.aardvarc.org/dv/malevictims.shtml