You mean getting pregnant or else? 
And yeah, I know I’m ancient…
I’ve never competed in the TdF, or had stones or given birth, but I think these types of pain are so different, that there’s not really a meaningful way to compare them. Certainly, there’s a point where the absolute magnitude wins, but it really is an apple and oranges sort of thing. As an athlete myself, I’ve dealt with a lot of that sort of pain, though admittedly not to the same degree, pushing myself way beyond the point of fatigue and nearly passing out. But comparing it to some major injuries I’ve had, it’s just fundamentally different. This is why I’ve often heard, and tend to agree with, the idea of that that level of exertion “hurts so good”.
And both of those, a severe injury like a slipped disk and that level of exertion, is fundamentally different from when I’ve had debilitating headaches. And though I’ve never had a direct nut shot, even a small hit and a resulting small amount of pain there is utterly debilitating, even with a much lower absolute magnitude.
So, I guess my point is, is this a question about absolute magnitude of pain, or is it which is the worst when also considering the type of pain it is? I imagine it’s the latter, in which case, in my personal experience, I could take a greater absolute magnitude of pain from athletic exertion than from any other type, so I couldn’t personally imagine it being as intollerable as childbirth. That said, as others mentioned, cluster headaches have GOT to “win”, because even with the severe headaches I’ve had, being more or less on par with the injuries I’ve had, knowing that cluster headaches are a completely different magnitude is just… frightening.
Well, like me she could have had a hysterectomy an dis no longer equipped for it 
I will say that pseudogout [same inflammation and pain, just different chemicals involved] is the worse acute pain I have ever had. I woke up when the cat landed on my foot at 2 in the morning … mrAru had never heard me scream before. :eek:
I did and still do get migraines, previously I had horomonal migraines and that ended with my hysterectomy so all I get now is the occasional stress or weather based migraine. That is a different pain, chronic pain has a different ‘flavor profile’ to it you could say. It is, in me, a gradual buildup from the first aura [I smell fruit, oranges, apples, bubblegum] so I have about 30 minutes to get midrin in me - I can’t use imitrex and midrin works, all the OTC is like eating M&Ms for all the pain control they offer. If I don’t, it is like someone is whacking me on the right side of my head with a baseball bat with a side order of icepicks into my eyes unless I get into a dark room, and vomiting if I get a smell of food or just intense nausea. Again, like any chronic pain it is something to be endured and let meds take their course.
Now menstrual pain - I used to get labor quality cramps [went along with the golf ball sized clots and filling a 1 ounce diva cup every hour and a half or so.] I used to describe it sort of how Tempus treated the eunich in a collection of short stories. He reached up the poor guys ass, grabbed a handfull of intestines and pulled them out. With me, it was someone reaching into my vagina, grabbing a handfull and pulling it out slowly while turning to make sure to wind everything around their wrist to make sure it all came out. I have to admit, I figure it is what it feels like to be drawn without the hanging or quartering. I know that it will eventually end, but until it does it is about like a lower abdominal migraine. I really could have used a hysterectomy at the age of 20…sigh
Many years ago I blew out my anterior cruciate ligament playing volleyball. A woman who happened to be a nurse saw it and ran over to look after me. She had a knee brace on. She said something along the lines of “I’ve blown out my knee and had kids and I can tell you, the knee hurts worse!”
Also, during labor, one generally has time between contractions with no particular discomfort. I had two full-term unmedicated deliveries and while I’d describe them as, well, labor as in hard work, they didn’t begin to compare to, say, a toothache. Certainly my husband’s kidney stones seemed more painful than my birthing experiences. He rarely takes so much as an aspirin for a headache, but he was pale as a sheet and begging for pain meds.
This is a silly question. How can you compare something that lasts at most a few days to something that lasts most of a month? Both are hard in different ways.
I do think it is worth noting that the difficulty of childbirth goes way beyond the birth itself. The changes to the body that occur during pregnancy are staggering, and many of them are permanent. The last month or so is near-constant discomfort. It’s not fun.