Shoulders and thighs take a real beating from doorways and objects, but the worst thing is when my cane gets stuck and I stab myself full force in the gut or hip.

Most blind people have done useful vision. But still, yes, I hit my head, thighs, elbows, a lot.
I have no peripheral vision so if I open a kitchen cupboard door and forget, I will snack my head on it a minute later.
People say, don’t you remember that you opened it? But that is the job of peripheral vision. A fully sighted person doesn’t remember they opened the cupboard door. Their peripheral vision reminds them.
So it’s not just unfamiliar places, it’s at home too.
My legs always have bruises on them from catching furniture corners. I misjudge door frames and catch elbows or shoulders.
I’m probably safer outside because I have my guide dog with me or my long cane. Long cane doesn’t protect against overhanging branches though, or low hanging signs. My dog will scan upwards too and lead me away from an overhanging branch,
I’ve long since developed a bounce reflex whereby I just shrug off bumps, even if they really hurt. It happens all the time so I literally don’t have the time to dwell on it much.
The skin dies get damaged by constant knocks, i know if someone whose skin split and needed stitches from years of the same spot on his forehead getting caught by things.
Although most bumps are inconsequential, the cumulative effect can be draining, there have been days when I’ve had one scrape too many and I’ve felt like crying. But mostly it’s just absorbed into my daily life.

Daily. I'm surprised I don't have some sort of bad concussion issues lol.
For me, a totally blind guy since birth, it gets kind of frustrating. Sometimes you just wanna punch the cabinet door that you forgot to close and thus just gashed your head on.
Sometimes I do hit it. Although this clearly is not the best coping method, but sometimes it feels pretty hopeless.

Sometime head, but usually shoulders or my side.

Daily. I somehow haven't broken anything yet.

Nice to know this is shared by many of us. (There's a door above our dryer I've considered removing with extreme prejudice.)

To u/GoBlindOrGoHome, I've found that the ramrod affect of a cane can be lessened when using the tapping technique (not sure if that's what you use or what's taught by default now).

Some guide schools train their dogs to look for head height obstacles as well.

I'm a cane user though, and I don't usually hit my head, mostly my hips and tits because they're what stick out the most in each direction lol.

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I have a tendency to hurt my everything. I am also naturally clumsy on top of my visual impairment, so it has created a sometimes painful result. I once fell or ran into something (I don’t remember), and I had to wear long sleeve shirts or cardigans to hide suspicious looking bruises.

I have some vision (can still recognize faces up close) but I don’t hit my head much. My legs/hips/arms, yes absolutely. All the time. But not my head.
I feel like there’s not many things to hit your head on daily. And when you’re not fully relying on vision you’re more careful with your surroundings.

Sometime head, but usually shoulders or my side.

IME it's pretty rare for anything painful. What I get:

1. leaves, branches, etc that jut out into sidewalks

Common and pretty much unavoidable unless you know that specific spot from previous experience.

I always wear a wide-brim hat, so I can partially avoid/shield this by just looking downwards, if I have a half-second or so of reaction time to go defensive.

2. street signs, phone booths, etc

If I notice a pole, I try to clear it vertically in case it has a projection. But depending on how fast I'm walking and how wide my sweep, I might not get the pole, and thus might not notice the sign or whatever projecting out from it. Or if I'm tired or distracted, I might forget to clear it.

In London (where I mainly live) this is almost never a problem. They have all signs mounted above head level.

(I did however once walk face first into a wall-mounted TV monitor with nothing below — in a UK government building's waiting area. That was a major fail. I reported it, but still waiting to hear back.)

In most other cities this is a major issue. Boston & DC especially, IME.

3. indoor stairs

Rare, but sometimes. Mainly two-level stores where they've failed to put barriers under the stairs. Hit myself pretty bad at a Starbucks in DC once.

4. tree branches in open fields

I can usually avoid this by sensing the rougher ground / higher grass / tree roots and switching to a high defense style of caning, but not always. Ran face first into a thick branch once, almost knocked me on my ass. ><

Not nearly as often as I probably should. If I don't know it's there, then yeah,probably. but in situations where I know I'm at risk of hitting my head, for example looking in the cupboards under the counter for something, the hand goes up before I do. Now, having just said that, I fully expect to brain myself on something stupid shortly.

Yup. But a guide dog is trained to avoid even obstacles that are none to them. So mine will protect me from anything in head height... But well that doesn't work at home of course ;)

Most guide dogs are trained to check for obstacles at head height, and avoid it. Sometimes they get distracted, thought.