I agree w/Beth-Ro. This is an amazing space. It's so hard to find women on bikes, much less folks w/whom one can ask personal questions. This has been hugely helpful.

I went to the OB/GYN yesterday who said "I've seen a lot of things, but nothing like this" (always reassuring). At any rate, it's *not* an infected hair follicle; it's *not* a Bartholin's gland (that's inside the vagina). He said it looks like a varicose vein, and feels "ropey" like a varicose vein. He wants me to see a dermatologist or cosmetic surgeon to see if they agree that it is indeed a varicose vein and (if so) for scelerotherapy or another intervention to block it. He though it made sense as a diagnosis considering the biking.

It's been helpful to have others chiming in. Thank you again. I'll send another post when the dermatologist has her/his say.