Testicular Cancer: Symptoms Men Should Know

Anal Disorders - Women's Health

What Is It?

The anus is that part of the intestinal tract that passes through the muscular canal of the pelvis and anal sphincters. It is the final orifice through which stool passes out of the body. In adults, the anus is 4 to 5 centimeters long. The lower half of the anal canal has sensitive nerve endings. There are blood vessels under the lining, and in its mid portion there are numerous tiny, anal glands. This article describes four disorders that cause anal pain and irritation:

Anal fissure - An anal fissure, also called an anorectal fissure, is a linear split or tear in the lining ("anoderm") of the lower anal canal. Most anal fissures happen when a large, hard stool overstretches the anal opening and tears the delicate anoderm. Less often, anal fissures develop because of prolonged diarrhea, inflammatory bowel disease or sexually transmitted diseases involving the anorectal area. Acute (short-term) anal fissures are usually superficial and shallow, but chronic (long-term) anal fissures may extend deeper through the anoderm to expose the surface of underlying muscle.

Anal abscess - An anal abscess is a swollen, painful collection of pus near the anus. Most anal abscesses are not related to other health problems and arise spontaneously, for reasons that are unclear. They originate in a tiny anal gland, which enlarages to create a site of infection under the skin. In the United States, more than half of all anal abscesses occur in young adults between the ages of 20 and 40, and men are affected more often than women. Most anal abscesses are located near the opening of the anus but rarely can occur deeper or higher in the anal canal, closer to the lower colon or pelvic organs.

Anal fistula - An anal fistula is an abnormal narrow tunnel-like passageway, which is the remnant of an old anal abscess after it has drained. It connects the mid portion of the anal canal (at the anal gland) to the surface of the skin. After an anal abscess has drained (either spontaneously or when lanced by a physician), an anal fistula will develop at least half of the time. Sometimes the opening of the fistula at the skin surface constantly discharges pus or bloody fluid. In other cases, the opening of the fistula closes temporarily, causing the old anal abscess to flare up again as a painful pocket of pus.

Hemorrhoids - Hemorrhoids do not ordinarily cause pain. Nevertheless, sometime the blood vessels in a small hemorrhoid at the edge of the anal orifice can clot off ("thrombosis"). This may be triggered by a period of constipation of diarrhea. When thrombosis occurs, the external hemorrhoid becomes swollen, hard, and painful, sometimes with bloody discharge.

Symptoms

Although all four anal disorders cause some type of anal discomfort or pain, other symptoms vary, depending on the specific anal problem.

For anal fissure, symptoms may include:

Pain in the anal area, often described as sharp, searing or burning, and usually triggered by a bowel movement

Mild rectal bleeding, typically a small amount of bright red blood with a bowel movement or on the toilet paper.

For anal abscess, symptoms include:

A firm, tender mass or swelling in or around the anal area, which may become large

Occastionally fever, chills and a generally sick feeling.

For an anal fistula, signs and symptoms may include:

Mild pain around the anus, centered in an area where an old anal abscess has either drained spontaneously, or has been opened surgically by a doctor

Persistent drainage of blood, pus or foul-smelling mucus from the anal area.

Symptoms of a recurrent anal abscess (see above), which may develop if the external opening of the fistula becomes clogged and the old abscess reactivates.

For thrombosis of an external hemorrhoid, the signs and symptoms include:

A firm and usually quite painful swelling at the anal orifice

Occasionally bloody discharge, if the surface of the hemorrhoid breaks down.

Diagnosis

Once you have described your symptoms, your doctor will ask questions about your medical history and lifestyle that will help in evaluating your anal problem. Depending on your symptoms, the doctor may ask about:

Your bowel habits, especially any history of constipation

Your medical history, including any history of bleeding disorders, episodes of rectal bleeding, inflammatory bowel disease, sexually transmitted diseases or radiation treatment for cancer

Your use of prescription or nonprescription medications that may increase the risk of bleeding

Whether you practice anal intercourse or have any history of anal trauma

Next, your doctor will perform a physical examination of your abdomen, followed by an external examination of your anal area and a digital (finger) rectal examination. Usually your doctor will also perform anoscopy (insertion of a tubelike instrument into the anus to look inside the anal canal) and sigmoidoscopy (a short telescope to examine the rectum and lower colon).

Expected Duration

How long anal disorders last varies:

Anal fissure - Painful anal fissures can be a recurrent problem in people who suffer from repeated episodes of constipation. Fortunately, superficial fissures usually heal quickly with medical treatment, and most symptoms disappear within a few days to a couple of weeks.

Anal abscess - An anal abscess sometimes drains on its own, although it is always safer for a doctor to evaluate the problem. If the abscess does not drain on its own, the doctor may incise and drain the abscess. After an abscess is drained, the pain is usually immediately better. An anal abscess often turns into an anal fistula even with appropriate treatment.

Anal fistula - Without treatment, an anal fistula may continue to ooze blood or pus for prolonged periods.

Thrombosed external hemorrhoid - Usually the body will slowly reabsorb the clot in such a hemorrhoid, and the pain and swelling will slowly go away over a period of days to a couple of weeks.

Prevention

You may be able to prevent anal fissures by preventing constipation. To do this, soften your stool by gradually adding more fiber to your diet, and by drinking 6 to 8 glasses of water daily. Commercially available fiber supplement powders work well.

Although it is not always possible to prevent other types of anal disorders, you may be able to decrease your risk for these illnesses by:

Using gentle techniques to clean the anal area

Keeping the anal area dry by changing underwear frequently and using powder to absorb moisture

Always using a condom if you practice anal intercourse

Never inserting any foreign object into the rectum

Treatment

A doctor must diagnose the four anal disorders described here. Once the diagnosis is made, your treatment may or may not involve surgery, depending on the specific disorder. If surgery is necessary, your doctor will use whatever type of anesthesia is appropriate to help prevent you from feeling pain in this very sensitive area.

Anal fissure - For an acute fissure, your doctor may recommend that you follow the suggestions for relieving constipation that are described in the Prevention section above. He or she also may tell you to apply a medicated ointment to the fissure, and to soak the anal area in warm water for 10 to 15 minutes several times a day ("sitz bath"). For chronic fissures, surgery can correct the problem in more than 90% of cases.

Anal abscess - An anal abscess must be opened or lanced by a doctor to drain the pus. This procedure is called incision and drainage, or I&D. This usually can be done as an outpatient procedure, especially if you are young and generally healthy, and your abscess is close to the anal opening.

Anal fistula - Surgery to unroof the fistula track ("fistulotomy"), is the most effective therapy. Your doctor opens the infected canal and scrapes away any remnants of the old anal abscess. The wound is left open to heal from the bottom up. If the fistula is associated with Crohn's disease, treatment is directed toward the Crohn's disease with anti-inflammatory medications combined with an antibiotic.

Thrombosed external hemorrhoid - Usually this will slowly disappear on its own. The process can be hastened by taking a fiber supplement to soften the stool, as well as by taking frequent warm water soaks ("sitz baths"). If the hemorrhoid is unusually painful, the doctor may carry out a limited operation under local anesthesia to remove the clotted hemorrhoid.

When To Call a Professional

Call your doctor promptly whenever you have rectal bleeding or any bloody discharge from the anus. Even if you have been treated for a bleeding fissure in the past, it is always safer for your doctor to determine the best course of action. This is especially true if you are over age 40, when there is an increase in the risk of rectal bleeding from colorectal cancer and other serious digestive diseases.

Also, call your doctor if you have:

Severe pain in the anal area

A tender mass or swelling near the anus, with or without a fever

Pus or a foul-smelling discharge from the anus

Discomfort or tightness in the anal area that interferes with bowel movements

Prognosis

In most cases, the prognosis is excellent. Almost all acute fissures heal quickly with conservative treatment, and almost all fistulas and chronic fissures can be corrected with surgery. Appropriate treatment of anal strictures will allow stool to pass easily and comfortably.

Most anal abscesses heal after being drained by a doctor. Some develop into anal fistulas. If a fistula does complicate the healing of an abscess, a fistulotomy will totally eliminate both the fistula and any remaining abscess in most patients.

Additional Info

National Institute of Diabetes & Digestive & Kidney Disorders Office of Communications and Public Liaison Building 31, Room 9A04 31 Center Drive, MSC 2560 Bethesda, MD 20892-2560 Phone: 301-496-4000  http://www.Niddk.Nih.Gov/ 

American College of Gastroenterology (ACG) P.O. Box 342260 Bethesda, MD 20827-2260 Phone: 301-263-9000  http://www.Acg.Gi.Org/ 

American Gastroenterological Association 4930 Del Ray Ave. Bethesda, MD 20814 Phone: 301-654-2055 Fax: 301-654-5920  http://www.Gastro.Org/ 

Medical content reviewed by the Faculty of the Harvard Medical School. Copyright by Harvard University. All rights reserved. Used with permission of StayWell.

Anal Fistula Symptoms - News-Medical.net

An anal fistula is also called a fistula-in-ano. It is an abnormal passage between the anal canal and the skin. It can lead to pain and inflammation, as well as systemic symptoms in some patients. Many different symptoms may be associated with an anal fistula, depending on the cause of the condition and other factors.

Skin Irritation

It is common for patients with anal fistula to report irritation or itching of the skin surrounding the anus. The medical term for this is pruritus ani, which means itchy skin around the anus.

In many cases, there may also be some swelling in the area, which is the result of skin irritation and inflammation.

Pain and Inflammation

Many patients report a constant, throbbing pain in the affected area around the anus throughout the day that does not cease.

The pain often worsens in intensity during certain activities, such as sitting, moving around, bowel movements or coughing. Patients may describe the intensifying of the pain to a burning, cutting or tearing type at such times.

Bleeding or Discharge from the fistula

Patients often report a discharge of foul-smelling or bloody material from outside the anal opening associated with pain. In some patients, the pain may reduce when the discharge begins.

Bleeding or Discharge per anus

Some patients with anal fistula may have a discharge of pus or blood in their stools, referred to as bloody or purulent stools.

A small amount of bright red blood on the surface of the stool is the most common type of anal bleeding, but some patients may not experience any obvious bleeding or discharge. The blood is not usually present inside the stool but on the surface of the stool.

Cause-specific Symptoms

There are also some symptoms often associated with anal fistula that are caused by a particular condition which causes or contributes to the fistula, such as an abscess or another health condition like Crohn's disease.

Symptoms due to anorectal abscesses

The majority of anal fistulas are caused by an anorectal abscess. They often become infected, leading to the presence of systemic symptoms. These may include:

Fever

Fatigue

Feeling unwell

Swelling around the anal orifice

Symptoms due to intestinal inflammation

Additionally, some cases of anal fistula may be caused by intestinal inflammation, such as in Crohn's disease. This is associated with other symptoms such as:

Symptoms for Diagnosis

The presenting symptoms are a significant factor in the diagnosis of anal fistula and it is important that the characteristics of the condition are discussed during the diagnostic process.

In particular, the nature of the skin irritation, pain, and discharge, as well as the presence of blood in the stools, should be covered in the patient consultation, in addition to other symptoms that may be associated with particular causes of the condition.

References Further Reading

Anal Fistulas: Causes, Treatments, And Surgical Options - Los Angeles Times

Anal fistulas are more than just a minor annoyance—they're persistent, painful and often require surgical care. These abnormal channels form between the anal canal and the skin around the anus, usually due to an underlying infection. Anal fistulas most often result from a bacterial infection that starts in the anal glands.

They may seem straightforward on the surface but anal fistulas can be tricky to diagnose and treat. An anal fistula is diagnosed through a combination of symptom assessment and clinical evaluation. Understanding how they develop, how they're classified and the evolving treatment landscape is key for patients and clinicians.

Table of ContentsWhat is an Anal Fistula?

An anal fistula is an abnormal tunnel that connects the inside of the anal canal to the skin around the anus. These tracts are usually the result of infections in small anal glands; an infected gland can lead to abscess formation and subsequent fistula development.

A perianal abscess, which occurs in the tissue around the anus, is a common precursor to an anal fistula. If these abscesses rupture or are drained they can create a fistula and untreated or recurrent abscesses can become a chronic condition increasing the risk of fistula formation.

Additional risk factors for developing anal fistulas include Crohn's disease and prior radiation therapy for cancer. According to research 2 in every 10,000 people develop an anal fistula annually with young men being disproportionately affected [11].

In infants, especially males, anal fistulas usually originate from developmental abnormalities involving the anal crypts, or small pockets near the anus [3].

How Anal Fistulas Form

Most anal fistulas are cryptoglandular, meaning they originate from infected anal glands located between the internal and external anal sphincter muscles [4]. When one of these glands becomes blocked bacteria can multiply and cause an abscess. If the abscess doesn't heal properly—or if it drains through the skin—it may leave behind a permanent tract: the fistula.

This is often sustained by ongoing inflammation or infection and in some cases by underlying conditions like Crohn's disease, tuberculosis or radiation injury. Because the tract develops in response to inflammation treating just the symptoms (like draining an abscess) without addressing the root cause can lead to recurrence.

Types and Diagnosis

Not all anal fistulas are created equal. They vary significantly depending on their position relative to the anal sphincter muscles and this classification plays a big role in treatment decisions. The fistula tract may pass through or around the internal sphincter and external sphincter muscles which affects the complexity of the case and the choice of treatment.

Simple vs. Complex: A simple fistula doesn't cross much of the sphincter muscle making it easier to treat. A complex one may involve multiple tracts or cross a significant portion of muscle and increase the risk of complications like incontinence.

High vs. Low: This refers to how deep the fistula goes and how much of the sphincter muscle it crosses. High fistulas are trickier to treat safely.

To map out the anatomy of a fistula MRI scans or endorectal ultrasounds are usually used [5]. These tools help surgeons visualize the full path of the fistula, any branching tracts, involvement of the internal sphincter and external sphincter muscles and the location of the fistula's internal opening before choosing a surgical strategy.

Treatment Options

There's no one-size-fits-all solution when it comes to treating anal fistulas. The main goals are to remove the fistula tract, prevent recurrence and preserve the anal sphincter muscles to avoid incontinence [1].

However, complications can arise such as recurrence of the condition, severe infections that may require hospitalization and the need for additional procedures or multiple surgeries to address persistent or complex cases.

For simple fistulas:

Fistulotomy is often the preferred method. This involves surgically opening the fistula tract so it can heal from the inside out [2].

For complex or high fistulas:

Sphincter-sparing procedures like the loose seton technique are common. A soft thread is placed through the fistula to keep it open and allow for drainage while promoting gradual healing [7], [10].

Other modern options include advancement flaps, LIFT (ligation of intersphincteric fistula tract) and biologic plugs—though their effectiveness can vary based on patient anatomy and the underlying cause.

Challenges in Management

Even with treatment recurrence is a big problem. Up to 30% of patients will experience symptoms again or need further procedures. Surgeries that involve too much of the anal sphincter can lead to incontinence and affect quality of life.

Alternative Treatments

In recent years researchers and surgeons have been exploring minimally invasive and biologically targeted therapies [9]. These include:

Stem cell therapy for Crohn's related fistulas

Laser ablation of the fistula tract

Fibrin glue and biologic meshes to close the tract while preserving muscle [6]

New techniques aim to reduce the trauma of surgery and increase healing and reduce recurrence.

For example one of the promising areas is biologics to manage the underlying inflammation especially in patients with autoimmune conditions. These are still being evaluated but represent a move towards precision medicine in colorectal surgery.

Closing Thoughts

Anal fistulas are a complex but common problem that goes beyond surface level discomfort. Rooted in infection and inflammation their treatment is all about a fine balance: getting rid of the fistula without compromising the muscle control of continence.

As diagnostic tools and treatments evolve so does the hope for better healing and less recurrence. For patients early evaluation and a tailored surgical plan is key to a good outcome.

References

[1] Charalampopoulos, A., Papakonstantinou, D., Bagias, G., Nastos, K., Perdikaris, M., & Papagrigoriadis, S. (2023). Surgery of Simple and Complex Anal Fistulae in Adults: A Review of the Literature for Optimal Surgical Outcomes. Cureus, 15(3), e35888. Https://doi.Org/10.7759/cureus.35888

[2] Limura, E., & Giordano, P. (2015). Modern management of anal fistula. World journal of gastroenterology, 21(1), 12–20. Https://doi.Org/10.3748/wjg.V21.I1.12

[3] Poenaru, D., & Yazbeck, S. (1993). Anal fistula in infants: etiology, features, management. Journal of pediatric surgery, 28(9), 1194–1195. Https://doi.Org/10.1016/0022-3468(93)90163-f

[4] Sohrabi, M., Bahrami, S., Mosalli, M., Khaleghian, M., & Obaidinia, M. (2024). Perianal Fistula; from Etiology to Treatment - A Review. Middle East journal of digestive diseases, 16(2), 76–85. Https://doi.Org/10.34172/mejdd.2024.373

[5] Bubbers, E. J., & Cologne, K. G. (2016). Management of Complex Anal Fistulas. Clinics in colon and rectal surgery, 29(1), 43–49. Https://doi.Org/10.1055/s-0035-1570392

[6] Malik, A. I., & Nelson, R. L. (2008). Surgical management of anal fistulae: a systematic review. Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland, 10(5), 420–430. Https://doi.Org/10.1111/j.1463-1318.2008.01483.X

[7] Litta, F., Parello, A., Ferri, L., Torrecilla, N. O., Marra, A. A., Orefice, R., De Simone, V., Campennì, P., Goglia, M., & Ratto, C. (2021). Simple fistula-in-ano: is it all simple? A systematic review. Techniques in coloproctology, 25(4), 385–399. Https://doi.Org/10.1007/s10151-020-02385-5

[8] Sneider, E. B., & Maykel, J. A. (2013). Anal abscess and fistula. Gastroenterology clinics of North America, 42(4), 773–784. Https://doi.Org/10.1016/j.Gtc.2013.08.003

[9] Ji, L., Zhang, Y., Xu, L., Wei, J., Weng, L., & Jiang, J. (2021). Advances in the Treatment of Anal Fistula: A Mini-Review of Recent Five-Year Clinical Studies. Frontiers in surgery, 7, 586891. Https://doi.Org/10.3389/fsurg.2020.586891

[10] Eitan, A., Koliada, M., & Bickel, A. (2009). The use of the loose seton technique as a definitive treatment for recurrent and persistent high trans-sphincteric anal fistulas: a long-term outcome. Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 13(6), 1116–1119. Https://doi.Org/10.1007/s11605-009-0826-6

[11] Ommer, A., Herold, A., Berg, E., Fürst, A., Sailer, M., Schiedeck, T., & German Society for General and Visceral Surgery (2011). Cryptoglandular anal fistulas. Deutsches Arzteblatt international, 108(42), 707–713. Https://doi.Org/10.3238/arztebl.2011.0707

MORE DOCTORS & SCIENTISTS

---