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  2. Melena - Wikipedia

    en.wikipedia.org/wiki/Melena

    Melena is a form of blood in stool which refers to the dark black, tarry feces that are commonly associated with upper gastrointestinal bleeding. [1] The black color and characteristic strong odor are caused by hemoglobin in the blood being altered by digestive enzymes and intestinal bacteria. [2]

  3. Anal fissure - Wikipedia

    en.wikipedia.org/wiki/Anal_fissure

    An anal fissure is a break or tear in the skin of the anal canal. Anal fissures may be noticed by bright red anal bleeding on toilet paper and undergarments, or sometimes in the toilet. If acute they are painful after defecation , [ 1 ] but with chronic fissures, pain intensity often reduces and becomes cyclical.

  4. Constipation - Wikipedia

    en.wikipedia.org/wiki/Constipation

    Constipation has a number of structural (mechanical, morphological, anatomical) causes, namely through creating space-occupying lesions within the colon that stop the passage of stool, such as colorectal cancer, strictures, rectocoles, anal sphincter damage or malformation and post-surgical changes. Extra-intestinal masses such as other ...

  5. Acetylcysteine - Wikipedia

    en.wikipedia.org/wiki/Acetylcysteine

    N-acetylcysteine, also known as Acetylcysteine and NAC, is a medication that is used to treat paracetamol (acetaminophen) overdose and to loosen thick mucus in individuals with chronic bronchopulmonary disorders, such as pneumonia and bronchitis. [9] It has been used to treat lactobezoar in infants.

  6. Proctalgia fugax - Wikipedia

    en.wikipedia.org/wiki/Proctalgia_fugax

    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 ...

  7. Why Is My Poop Light Tan? Here’s What Causes Pale or Clay ...

    www.aol.com/why-poop-light-tan-causes-210633163.html

    If your skin is looking a bit pale (which can occur in people of any skin tone), there’s usually a reason. It could be anything from a vitamin B12 deficiency to a symptom of anemia.The same is ...

  8. Obstructed defecation - Wikipedia

    en.wikipedia.org/wiki/Obstructed_defecation

    The catheter measures a range of physiological variables such as anal sphincter tone, anorectal sensation, resting pressure, squeeze pressure and length of the high pressure zone (HPZ) in the anal canal, rectal compliance, rectoanal inhibitory reflex (RAIR), and the ability of the internal and external anal sphincters to relax during straining.

  9. Rectal pain - Wikipedia

    en.wikipedia.org/wiki/Rectal_pain

    Two more highly common causes of functional anorectal pain are levator ani syndrome (LAS) and proctalgia fugax.Both of these conditions are thought to be caused by muscle spasms of the either the levator ani muscle or the anal sphincter muscle respectively, and may overlap symptomatically with a third less-common condition called coccygodynia which is the result of previous trauma to the ...