I don't know if any of you have been watching the limited series Big Little Lies on HBO. Last night's episode found Celeste (Nicole Kidman) finally fighting back when her husband Perry (Alexander Skarsgaard) abuses her. She gives him a good swift smack to his boner with some object I couldn't quite see clearly.
The result, of course, was him doubled in pain and grabbing his crotch. The diagnosis in the ER scene, as they released him, was announced as "a broken urethra." What they really meant was a "fractured Tunica," the fibrous sheath of the penis surrounding the Cavernosum, those spongy caverns that fill with blood and makes the cock stand up.
I know it was way too complicated for them to go into. But....
The most common cause is due to having someone ride your cock. They lift up a bit too far, and when they slam back down....
Morning wood actually occurs numerous times during the night.
A guy rolls over on it and.... You may not notice it. It may not wake you. But there might be spots of bruising along the shaft in the morning. However, if you're nude, it is free to move.
With the cracking of a boner, healing will typically result in a bent shaft due to the scar tissue.
If the bend is too severe, it will make penetrative activity impossible.
That can be corrected with surgery, but I'll spare you the gruesome photos. Your cock is not indestructible. You can break it, you can permanently damage it.
You need to be cautious with those boners, guys.