The lymphatics of vulva:
Lymphatic Drainage of Reproductive Tract:
Uterine Corpus –
1. Fundus-Para-aortic lymph nodes
2. Cornu-Superficial inguinal
3. Body-External Iliac L N
Cervix    1. Paramatrial
2. Internal iliac group
3. Obtruator group
4. External iliac group
5. Sacral

All these drain into common iliac and superior lumbar group

Fallopian tube and ovary-Superior lumbar group
Vagina - Upper 2/3-Like cervix
                  Lower 1/3-Inguinal and external iliac nodes
Vulva-    Superficial inguinal
                 Deep inguinal
                 External iliac
Do not freely communicate with each other
Do not cross the labiocrual fold
Transverse the labia from medial to lateral margin
Drain directly into the deep femoral glands