Cardiovascular (I00-I99).
- Anal vein thrombosis (AVT; synonyms: Anal thrombosis, perianal thrombosis, perianal vein thrombosis, perianal thrombosis) – occlusion of a vein in the region of the anus; acute onset of perianal pain with stabbing pain symptomatology; occurrence after more vigorous pressing, lifting heavy loads, etc.; inspection (viewing) reveals one or more prallelastic nodules that are blue-livid in color
Infectious and parasitic diseases (A00-B99).
- Anal tuberculosis – tuberculosis localized in the region of the anus.
- Perianal streptococcal dermatitis (PSD) – symptoms/discomfort: perianal itching, soreness, and pain; causative agent: β-hemolytic streptococci (BHS); treatment of choice: oral antibiotics with penicillins or cephalosporins
Mouth, esophagus (food pipe), stomach, and intestines (K00-K67; K90-K93).
- Anal abscess – accumulation of pus in the region of the anus; burning, stabbing, and dull pain symptoms; constant pain, varying in intensity depending on location
- Anal fistula – connection between the anus and, for example, other parts of the intestine; burning, stabbing and dull pain symptomatology; continuous pain, depending on the localization in intensity fluctuating → clarification of a Crohn’s disease required; in about 40% of cases, this is the first symptom of the disease.
- Anal fissure (painful tear of the skin / mucosa in the area of the anus) – pain onset usually during and after defecation (defecation), then persistence for some time and then decreases again
- Anal cryptitis – inflammation of the anus; burning and stabbing pain symptoms; persistent pain, increased after defecation.
- Anal tuberculosis – tuberculosis localized in the area of the anus.
- Hemorrhoids (often referred to as: thrombotic hemorrhoids).
- Incarcerated hemorrhoidal prolapse – in higher-grade hemorrhoidal disease (grade 4), there may be permanent displacement of mucosa from the anal canal
- Incarcerated rectal prolapse – pinched protrusion of the rectum.
- Crohn’s disease – chronic inflammatory bowel disease (IBD); usually progresses in episodes and can affect the entire digestive tract; characteristic is the segmental affection of the intestinal mucosa (intestinal mucosa), that is, several intestinal segments may be affected, which are separated from each other by healthy sections. (Anal fistula)
- Constipation (constipation)
- Perianal abscess (perianal abscess) – purulent inflammation in the tissues around the anus.
- Perianal hematoma – bruise in the tissue around the anus.
- Proctalgia fugax (anorectal pain syndrome; anal spasm/anal spasm) – brief spasmodic pain in the anal and rectal area (spasticity of the pelvic floor muscles) for seconds to minutes.
- Proctitis – inflammation of the rectum; dull pain symptomatology; increased bowel movements, continuous pain, before bowel movements increasingly, afterwards relief.
Musculoskeletal system and connective tissue (M00-M99).
- Coccygodynia – pain in the coccyx.
Neoplasms – tumor diseases (C00-D48)
- Ovarian tumors – unspecified neoplasms in the region of the ovaries.
- Presacral tumors, unspecified.
- Tumors in the anorectal region (e.g., anal carcinoma, rectal carcinoma/bowel cancer).
Psyche – nervous system (F00-F99; G00-G99).
- Functional anorectal pain – see below classification.
- Injuries to the cauda equina, unspecified – horse-tail-shaped bundle of nerve fibers that forms the end of the spinal cord.
Genitourinary system (kidneys, urinary tract – sex organs) (N00-N99).
- Descensus perinei or descending perineum syndrome (DPS) – depression of the perineum (perineal area; region between the anus and the external genital organs) when pressing below the ischial tuberosity level; results in difficult or painful defecation (bowel movement) as well as the sensation of stool blockage with incomplete evacuation,
- Endometriosis – occurrence of endometrium (lining of the uterus) outside the uterus, such as in or on the ovaries (ovaries), tubes (fallopian tubes), urinary bladder, or intestines
- Ovarian cyst – ovarian cyst.
- Prostatitis (inflammation of the prostate)
Injuries, poisonings, and other consequences of external causes (S00-T98).
- Injuries, unspecified
Other causes
- Pelvic floor subsidence, unspecified
