Wa `alaykum As-Salamu wa Rahmatullahi wa Barakatuh.

 

If there is a sufficient number of female specialists in gynecology and obstetrics, then it should be limited to them and it is not permissible for your husband to study it, or to look at the ‘awrahs of women when training, whether that is examining them or doing surgery on them.

 

But if there are not enough women specializing in gynecology to do what is essential in this field, and there is a need for Muslims to specialize in it, then it is permissible for you to study it and you have a concession allowing you to see whatever you need to see to examine women and do operations.

 

Almighty Allah knows best.