What are the differences between perianal abscess and hemorrhoids?

Generally speaking, the main differences between perianal abscess and hemorrhoids include symptoms, lesion characteristics, causes, disease progression, and treatment methods. If discomfort occurs, it is recommended to seek timely medical treatment at a regular hospital. The specific analysis is as follows:

1. Symptoms

A perianal abscess mainly presents as persistent pain and swelling around the anus, with severe pain that is throbbing or continuously distending, worsening during defecation, walking, or sitting. It may be accompanied by systemic symptoms such as fever and chills. A palpable mass with significant tenderness can be felt locally, and the abscess may spontaneously rupture and discharge pus in severe cases. The main symptom of hemorrhoids is rectal bleeding, with bright red blood typically dripping or spurting out. When internal hemorrhoids prolapse, soft masses can be seen outside the anus, usually without significant pain. External hemorrhoids with thrombosis may cause sudden anal pain, but without systemic fever symptoms.

2. Lesion Characteristics

A perianal abscess is an acute suppurative infection occurring in the soft tissue spaces around the anus. It belongs to infectious diseases, with pus accumulation at the lesion site. If not treated promptly, it can easily lead to complications such as anal fistula. Hemorrhoids refer to venous clusters formed by blood stasis, dilation, and tortuosity of the venous plexus beneath the mucosa of the lower rectum and anal skin. They are benign hyperplastic lesions and non-infectious diseases.

3. Causes

Perianal abscesses are mostly caused by anal gland infections. The anal glands open into the anal sinuses; when these sinuses become contaminated and inflamed by feces, bacteria can invade the anal glands, causing infection that subsequently spreads to surrounding soft tissue spaces forming an abscess. Additionally, perianal skin injuries, anal fissures, and hemorrhoids may also trigger abscesses. Hemorrhoids are commonly associated with increased abdominal pressure, such as chronic constipation, excessive straining during defecation, prolonged sitting or standing, pregnancy, and obesity, all of which hinder venous blood return, causing congestion and dilation.

4. Disease Progression

Perianal abscesses onset acutely and progress rapidly, with pain intensifying significantly within a short time. If not treated promptly, the abscess may spontaneously rupture, temporarily relieving pain after pus drainage but easily leading to anal fistula with recurrent episodes. Hemorrhoids develop relatively slowly, with symptoms varying from mild to severe. Bleeding and prolapse may change with alterations in bowel habits. They generally do not rupture spontaneously with pus discharge nor progress directly into other severe diseases, but symptoms may gradually worsen over time.

5. Treatment Methods

Once diagnosed with a perianal abscess, timely surgical treatment is required, such as incision and drainage to expel pus and control infection. Postoperative anti-infective therapy is also needed, and some patients may require a second surgery to address anal fistula. For mild hemorrhoid symptoms, conservative treatments such as dietary adjustments, improved bowel habits, and topical medications can alleviate symptoms. Severe cases can be treated with injection therapy, rubber band ligation, or surgical excision, without requiring anti-infective treatment.

In daily life, it is important to maintain anal hygiene, avoid prolonged sitting, and ensure regular bowel movements to prevent anorectal diseases. If perianal discomfort occurs, do not self-medicate; instead, seek timely medical consultation for accurate diagnosis.