Anal vein thrombosis

Treatment of anal vein thrombosis

What is an anal vein thrombosis?

An anal vein thrombosis is a sudden, painful swelling at the edge of the anus.

It is caused by a small blood clot in a superficial vein of the anal skin – not in a deep vein, as in a leg vein thrombosis.

It is not dangerous, cannot migrate, and usually heals on its own.
Although the symptoms can be uncomfortable, they are well treatable and typically improve within a few days to weeks.

Causes

Common triggers include:

Straining during bowel movements
Prolonged sitting or standing
Physical strain (e.g. sports or heavy lifting)
Spicy foods, alcohol or heat
Stress or tension

In these situations, a small blood clot (thrombus) forms in a superficial vein at the anal margin, causing the swelling.

Symptoms

Typical symptoms are:

Sudden, painful swelling or a bluish lump at the edge of the anus
A feeling of pressure or tightness, especially when sitting or during bowel movements
Occasionally itching or burning
In rare cases, mild bleeding

Treatment

Treatment depends on the severity of the condition:

Smaller thromboses:

Ointments to relieve pain and inflammation
Sitz baths and rest
A high-fibre diet and sufficient fluid intake to keep stools soft
Larger or very painful thromboses:

Removal of the clot under local anaesthesia
The procedure takes only a few minutes and usually provides immediate relief
No hospital stay is required

Our goal

Our aim is a gentle, safe and discreet treatment that quickly relieves your symptoms and reassures you.
It is important to us that you feel comfortable again as soon as possible and can return to everyday life without pain or anxiety.