What causes the painful spasms in the anus?
In today’s society, occupational factors contribute significantly to anal pain in many individuals. For example, teachers who stand or sit for prolonged periods and lack regular physical activity are at risk. Similarly, young adults with poor lifestyle habits—such as frequent late-night sleeping, irregular eating patterns, or excessive alcohol consumption and rich, fatty meals due to business social engagements—may also develop anal pain. So, what causes the sharp, cramp-like pain in the anus?
What Causes Cramp-Like Anal Pain?
Generally, cramp-like anal pain may result from conditions such as hemorrhoids, anal fissures, or anal sinusitis. A detailed analysis follows:
1. Hemorrhoids
Poor daily habits—such as prolonged squatting or sitting during bowel movements—can easily lead to hemorrhoids. Typical manifestations include localized, firm, and tender perianal masses. Under a physician’s guidance, patients may use topical medications such as Ma Ying Long Hemorrhoid Ointment or Gang Tai Ointment. Additionally, avoid spicy and irritating foods.
2. Anal Fissure
Hard stools can cause difficulty during defecation, leading to tearing of the perianal skin and resulting in cramp-like anal pain—often accompanied by bleeding. Soaking in a potassium permanganate solution (sitz bath) may help alleviate symptoms. Drink plenty of water daily to promote regular bowel movements.

3. Anal Sinusitis
Fecal residue or secretions may accumulate and obstruct the anal sinuses, predisposing them to infection and inflammation. During defecation, pressure from stool on the inflamed sinuses can cause a burning sensation in the anal region. If the anal sphincter muscle spasms in response to irritation, pain intensifies. Patients may use prescribed medications such as Compound Carrageenan Suppositories or Jiu Hua Ointment. Maintain good local hygiene.

In addition to the above common causes, rectal cancer may also present with this symptom. Therefore, prompt medical evaluation is strongly recommended to determine the underlying cause and initiate appropriate, targeted treatment. We hope this information proves helpful.