This pain is usually caused by intense muscle spasms in or around the canal of the anus. The pain is slightly different in levator ani syndrome, and may last days instead of minutes. Anyone can experience proctalgia fugax. The symptoms of proctalgia fugax are muscles spasms in or around the lower rectum area or in or around the canal of the anus. The pain or spasm happens suddenly, and usually without warning.
Rectal Pain: 16 Causes in Men, Women, Other Symptoms
Proctalgia fugax , a variant of levator ani syndrome , is a severe, episodic pain in the regions of the rectum and anus. It most often occurs in the middle of the night  and lasts from seconds to minutes;  pain and aching lasting twenty minutes or longer would likely be diagnosed instead as levator ani syndrome. In a study published in involving patients, the attacks occurred in the daytime 33 percent as well as at night 33 percent and the average number of attacks was Onset can be in childhood; however, in multiple studies the average age of onset was Many studies showed that women are affected more commonly than men,  but this can be at least partly explained by men's reluctance to seek medical advice concerning rectal pain. To be diagnosed as proctalgia fugax, the pain must arise de novo meaning the absence of clear cause. As such, pain associated with constipation either chronic, or acute , penetrative anal intercourse, trauma such as tears or fissures of the rectal sphincter or anal canal , side-effects of some medications particularly opiates , or rectal foreign body insertion preclude this diagnosis.
What Causes Rectal Pain?
The anal canal is surrounded by various organs, such as the prostate in men and the uterus in women, and is supported by the pelvic floor muscles or levator ani. The pain caused by the muscles spasming can occur without any trigger in particular. In some situations we know that this may be due to damage or entrapment of the nerve that supplies the anal canal muscles. It can affect anyone, although sufferers tend to be women. However because the symptoms that people describe can be so variable, your specialist will investigate you thoroughly to exclude other conditions related to organs that surround the anal canal and pelvic floor.
Proctalgia is pain due to a spasm of the pelvic floor muscles, the muscles of the anal sphincter, or the muscles of the rectum. This causes severe stabbing pain like a knife sticking into the rectum. This type of pain may originate without warning.