Is 学长/学兄 gender specific？ So the word 学姐 is gender specific to woman so what about 学长? Is it only use for male? And if so is 学兄 for all gender?
From my experience, 学兄, for male only, is understandable, but is rarely used. 

学姐 is used more than 学兄. 

学长 is common and gender neutral, although it's more common among men than women. 

I also heard of 学弟，学妹.