Proctologist near Phoenix, AZ – Dr. Fernando Alemán Rojas

Specialist in Coloproctology. Certified by the Mexican Council of General Surgery and the Mexican Council of Specialists in Coloproctology.

Based on +405 reviews

Testimonials – Certified colon & rectal surgeon near Phoenix, AZ

Al hacer una búsqueda aleatoria, no en vano el doctor Fernando Alemán Rojas aparece entre los primeros coloproctólogos y entre los de mejor puntaje de la ciudad de Hermosillo, Sonora, México. Me lo recomendaron, lo busqué, lo encontré y hasta hoy no me arrepiento de mi elección. Desde la primera consulta, he percibido claridad meridiana en sus explicaciones, un trato humano y empático. El diagnóstico preliminar, los estudios posteriores y el tratamiento indicado me han hecho sentir notable mejoría a mis dolencias intestinales. Definitivamente, creo que estoy en las mejores manos posibles y en el camino correcto con el doctor Fernando Alemán Rojas. Dios bendiga e ilumine a hombres de ciencia como el doctor Alemán, para que con su conocimiento objetivo y práctico continúe ayudando a quienes lo buscan y necesitan.

Diuber Farías

El doctor Fernando Alemán supo tratar y resolver el problema médico que tenía. Además, siempre se mostró muy amable, paciente y profesional en el tema.

Víctor Hugo Martínez

Excelente atención muy profesional y respetuoso te brinda mucha confianza

Judith Montaño

Dr. Fernando Alemán – Proctology specialist near Phoenix, AZ

Professional License: 7184081 | Specialty License: 9982821 | Subspecialty License: 10774135

I am a surgeon with over 8 years of experience in General Surgery and 6 years in Coloproctology, with more than 9,000 patients treated. I specialize in Coloproctology and minimally invasive procedures. I am certified by the Mexican Council of General Surgery and the Mexican Council of Specialists in Coloproctology.

Certifications of our Proctologist near Phoenix, Arizona

Years of experience in General Surgery
Years of experience in Coloproctology
Patients treated
Procedures performed

Frequently Asked Questions – Proctology near Phoenix, AZ

A coloproctologist is a specialist in the surgical and non-surgical treatment of diseases of the colon, rectum, and anus. Certified coloproctologists complete a general surgery residency (4 years) followed by a specialty in colon, rectum, and anus surgery (2 years).

  • Hemorrhoids.
  • Hemorrhoidal banding.
  • Anal fissure.
  • Anal abscess.
  • Anal fistula.
  • Pilonidal cyst.
  • Lower gastrointestinal bleeding.
  • Appendicitis.
  • Colon diseases.
  • Colon cancer.
  • Rectal cancer.
  • Anal cancer.
  • Irritable bowel syndrome.
  • Constipation.
  • Diarrhea.
  • Ulcerative colitis.
  • Rectal prolapse.
  • Fecal incontinence.
  • Anal warts.
  • Sexually transmitted diseases.
  • Diverticular disease of the colon.
  • Anal pain.
  • Anal bleeding.
  • Mucus or pus discharge.
  • Abdominal pain.
  • Constipation.
  • Diarrhea.
  • Hemorrhoidectomy.
  • Fissure surgery.
  • Abscess and anal fistula surgery.
  • Anal plasty.
  • Appendectomy.
  • Electrofulguration of warts.
  • Colectomies.
  • Sigmoidectomy.
  • Pilonidal cyst surgery.
  • Anoscopy: Exam that uses a small tubular instrument, the anoscope.
  • Colonoscopy: Exploration that allows direct visualization of the entire large intestine and also, if necessary, the final part of the small intestine.

The anal fistula constitutes the most concerning chapter of anal pathology due to its consequences, as it can lead to anal incontinence (lack of control in defecation). Both the fistula and the abscess are signs or results of the infection of the glands located between the anus and rectum. The most frequent cause of this infection is the fissure. The abscess is the acute form, and the fistula is the chronic form.

An anal abscess is an infected cavity filled with pus near the anus or rectum, and an anal fistula is almost always the result of a previous abscess. Typically, a gland in the anus becomes infected first, and then a tunnel forms, seeking an exit for the infection to the perianal skin. It could be said, therefore, that the abscess is the acute process, and the fistula is the chronic process. It is noteworthy that the abscess is usually very painful, and when the fistula forms and the pus externalizes, the pain tends to decrease or disappear.

The first thing you should do is consult a specialist to assess the state of the fistula. If your quality of life is poor, your doctor will likely advise you to have surgery as soon as possible. If the fissure surgery is in expert hands, the results are very good, and the recovery for returning to work is quick.

NOVA Medical Clinic – Proctology specialist near Phoenix, AZ

Proctologist near Phoenix, AZ Address: Av. Gaston Madrid #33, Centro, 83000, Hermosillo, Son.

CIMA Medical Tower – Proctology specialist near Phoenix, AZ

Proctologist near Phoenix, AZ Address: Av. Paseo Río San Miguel 49, Proyecto Rio Sonora Hermosillo XXI, Hermosillo, Son. 83270.

We accept all medical insurances – Proctologist near Phoenix, Arizona

Coloproctólogo en Hermosillo

Proctologist near Phoenix, AZ

Looking for a proctologist near Phoenix, AZ? With over 8 years of experience in General Surgery and 6 years in Coloproctology, and more than 9,000 patients treated, Dr. Fernando Alemán Rojas is a surgical specialist in Coloproctology and minimally invasive procedures. He is certified by the Mexican Council of General Surgery and the Mexican Council of Specialists in Coloproctology.

Schedule your appointment with our certified colon & rectal surgeon near Phoenix, AZ!

Benefits of LigaSure: Less pain, faster recovery, less bleeding, fewer post-operative discomforts.

Proctology specialist near Phoenix, AZ

Coloproctology is the branch of medicine that studies all diseases affecting the colon, rectum, and anus. It is one of the most important specialties in medicine and surgery, with pathologies in this region accounting for 50% of a surgery team’s tasks. It is a specialty that addresses a wide range of pathologies, from colon and rectal cancer to anal diseases (hemorrhoids, fistulas, fissures, or incontinence).

The pathologies treated by a coloproctologist can be divided into those affecting the colon and rectum or those affecting the anus. Within the colon and rectum, the most important pathology is colorectal cancer. It is the most common cancer in the population when combining men and women, and it occupies most of the time of coloproctology surgeons.

When a patient is diagnosed with colon and rectal cancer, it is important that they are operated on by a specialist in Coloproctology. This will impact the results, with fewer complications and a better prognosis for the patient. Until recently, colon cancer was operated on through laparotomy or open surgery. Recently, laparoscopy has been used, which is much less invasive, involves fewer complications for the patient, a shorter hospital stay, and a better recovery. Moreover, according to some studies, the prognosis is more favorable in patients operated on laparoscopically.

Every coloproctologist, to perform their specialty successfully and safely for the patient, must stay at the forefront of both research and the use of medical and surgical advancements. This way, surgeries become less invasive and the cure rate of these diseases is much higher, allowing for a quicker return to the patient’s usual activities.

Additionally, there are other pathologies affecting the colon and rectum:

  • Ulcerative colitis.
  • Crohn’s disease.
  • Colorectal polyps.
  • Colorectal endometriosis.
  • Colon diverticula.
  • Colon angioplasty.
  • Rectocele.


The colonoscopy is performed by an experienced coloproctologist and lasts approximately 30 to 60 minutes. You will be given medications through a vein to make you feel relaxed and sleepy. You will be asked to lie on your left side on the examination table. During a colonoscopy, the doctor uses a colonoscope, a long, flexible tube about 1/2 inch in diameter that transmits an image of the colon lining so the doctor can examine it for abnormalities. The colonoscope is inserted through the rectum and advanced to the other end of the large intestine.

The endoscope bends so the doctor can move it through the curves of your colon. You may be asked to change positions occasionally to help the doctor move the endoscope. The endoscope also injects air into the colon, which expands the colon and helps the doctor see more clearly.

You may feel mild cramping during the procedure. You can reduce the cramps by taking several slow, deep breaths during the procedure. When the doctor has finished, the colonoscope is slowly withdrawn while the lining of the intestine is carefully examined.

During the colonoscopy, if the doctor sees something that may be abnormal, small amounts of tissue can be removed for analysis (a biopsy), and abnormal growths or polyps can be identified and removed. In many cases, a colonoscopy allows for accurate diagnosis and treatment without the need for major surgery.

Diseases and Conditions Reviewed by a Coloproctologist

  • Hemorrhoids: Swollen and inflamed veins in the rectum and anus causing discomfort and bleeding.
  • Hemorrhoid banding: Placement of a plastic rubber band (with or without latex) at the base of the hemorrhoid, causing it to atrophy and be completely removed.
  • Anal fissure: Small tear in the lining of the anus.
  • Anal abscess: Accumulation of pus in the tissue surrounding the anus and rectum.
  • Anal fistula: Infected tunnel between the skin and the anus.
  • Pilonidal cyst: Abnormal skin growth with hair and skin located at the tailbone.
  • Lower gastrointestinal bleeding: Originates in the gastrointestinal tract distal to the Treitz angle.
  • Appendicitis: Inflammation of the appendix, a finger-shaped pouch projecting from the colon in the lower right abdomen.
  • Colon diseases: Colorectal cancer, colon polyps, ulcerative colitis, ulcers in the colon and rectum.
  • Colon cancer: Cancer of the colon or rectum located at the lower end of the digestive tract.
  • Rectal cancer: Cancer of the colon or rectum located at the lower end of the digestive tract.
  • Anal cancer: Anal cancer can cause symptoms such as rectal bleeding and anal pain.
  • Irritable bowel syndrome: Intestinal disorder causing belly pain, gas, diarrhea, and constipation.
  • Constipation: When a person has fewer than three bowel movements per week or has difficulty doing so.
  • Diarrhea: Loose and watery stools occurring more frequently than usual.
  • Ulcerative colitis: Chronic inflammatory bowel disease causing inflammation of the digestive tract.
  • Rectal prolapse: Occurs when the rectal wall protrudes through the anus.
  • Fecal incontinence: Inability to control bowel movements, causing stool to leak unexpectedly.
  • Anal warts: Benign lesions caused by infection with the human papillomavirus (HPV).
  • Sexually transmitted diseases: For example, AIDS, syphilis, gonorrhea, chlamydia, and human papillomavirus (HPV).
  • Diverticular disease of the colon: When one or more pouches become inflamed and, in some cases, infected; this condition is known as diverticulitis.

When should you consider visiting a proctologist?

While these doctors treat a wide variety of gastrointestinal tract diseases, most patients do not always know when a visit to a proctologist is justified. However, there are many reasons for patients of any age to seek treatment from a proctologist.

Many of the disorders treated by a proctologist are identified during regular check-ups with a primary care physician. Primary care physicians constantly evaluate your clinical and laboratory data to detect any potential problems.

Some of the most common disorders for which a primary care physician may refer you to a proctologist are:

  • Anal leakage or discharge.
  • Rectal bleeding.
  • Lump found around the anus.
  • Change in bowel habits.
  • Change in bowel characteristics such as color or consistency.
  • Red and inflamed area on the buttocks, such as an abscess.
  • Advanced age

Schedule an appointment with the best Proctology specialist near Phoenix, AZ

Looking for proctologists near Phoenix, Arizona?

For more information or to schedule an evaluation, you can contact the following phone number, or reach us through our WhatsApp button. Schedule your appointment with the coloproctologist near Phoenix, Arizona!