Jump-land from high cause rectum pain
August 28, 2011 9:01 AM   Subscribe

I am male. When I jump down from a fence, why is there a sharp pain in my rectum?

Assuming the fence is at least 2 metres high. This happens when I land on foot with stiff legs. It does not happen when I try to cushion my fall by allowing my legs to bend. It has happened on a several occasions since I was a teen till about mid twenties. It has not happened recently as I have been careful about cushioning my lands, but it has been on my mind and finally got around to posting it on Mefi!

It does not happen when I jump up and down on flat surface, or while playing basketball.

The pain is sharp, intense and short-lived. It is like something about an inch deep is getting pinched or squeezed hard..

Possibilities I have come up with:
-prostate moving out of position too suddenly, possibly tearing something
-too much blood rushing too quickly downwards pushing against some wall near the anus
-large intestines pressing into the rectum.

I would like to know if anyone else shares this experience? And what is the cause of it?
posted by anonymous to Health & Fitness (9 answers total) 4 users marked this as a favorite
I don't know about a sharp pain, but if I land on my heels, it tightens up. Probably snaps shut in case you're hitting water.
posted by yerfatma at 9:07 AM on August 28, 2011

additional possibility:
-you have a bone chip floating around back there that is normally benign even with small jumps, but with 2-meter uncushioned jumps that kind of shock pushes it against a sensitive nerve. You parkouring may have caused the chip to occur, the first time around. It could be referred pain caused by a chip not in the precise location where you feel the pain. But IANAD. Check out the discussion on this page, which is probably better advice — it suggests quite a range of possible causes. So probably you're not going to get this pinpointed without some medical examinations.
posted by beagle at 9:43 AM on August 28, 2011

Related maybe to Proctalgia Fugax, which is something i've suffered from for awhile without ever knowing the name?
posted by softlord at 9:52 AM on August 28, 2011

Newton's first law of motion? You are jumping; your intestinal tract is in motion. You stop; your intestinal tract is still in motion, until it essentially bangs to a stop against your sphincter. Which, by the way, is filled with nerve endings. Like, loads of them.

There is a reasonable amount of force involved in such a leap. Your teeth likely chatter shut as well, your knees may crunch, etc.
posted by DarlingBri at 11:29 AM on August 28, 2011 [3 favorites]

Geez...what's with the doomsday scenarios? Most likely it's just internal hæmorrhoids.
posted by wutangclan at 4:08 PM on August 28, 2011

fence is at least 2 metres high. This happens when I land on foot with stiff legs.

What? That has to be painful anyway. Don't do that, Newton's First law, etc, etc.
posted by Nonsteroidal Anti-Inflammatory Drug at 4:47 PM on August 28, 2011 [1 favorite]

When I went to a physical therapist for what I was sure was a broken tailbone that was stabbing me internally and made me feel like I was sitting on a steak knife, I was told that the nerve endings there are... imprecise? So it might feel like it's your rectum but actually it's something else in the general area.
posted by The corpse in the library at 4:48 PM on August 28, 2011

guy goes to doctor and says, it hurts when i jump from fences. what should i do? doctor says, don't jump from fences.
posted by Jason and Laszlo at 5:04 AM on August 29, 2011 [2 favorites]

The nerve endings in your rectum connect to your brain via your spine.

Be kind to your spine.
posted by flabdablet at 6:17 AM on August 29, 2011

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