There are five categories of membership:
1. Full Member is medical doctor who has completed a post graduate training in gynaecology and obstetrics and registered by the Medical and Dental Council of Nigeria as a specialist in the specialty.
2. Life Member is a full member who have paid up-front a lump sum fee equivalent to 20 years of current subscription.
3. Senior Member is a full member nominated and approved by the executive council haven been an active/financial member continuously for at least 10years and now retired from active service, or has attained the age of 70 years.
4.An Associate Member is a medical practitioner who have passed the Primary Fellowship examination of the West African College of Surgeons (Primary FWACS) or National Postgraduate Medical College (Primary FMCOG) or their equivalent, and are in training institutions, and those who have passed Part 1 FWACS or FMCOG or their equivalent, whether are still or not in training, are eligible to be admitted as Associate Member provided they pay appropriate registration and subscription fees.
5. Honorary Member (Fellowship) refer to men and women irrespective of their profession who are not ordinarily eligible to be members of SOGON but who have distinguished themselves in service to women and the newborn or the general public at large.