Feeling anal penis contraction may be caused by low outside temperature, perineal diseases, perianal diseases, prostatitis and other reasons.
1. Low outside temperature: Because of the cold outside air, the air temperature is low, may cause to feel anal penis contraction.
2. Perineal diseases: scrotal inflammation, perineal soft tissue inflammation, localized boils, may cause congestion and swelling, and may also feel the contraction of the anus penis.
3. Perianal diseases: hemorrhoids, anal fissure, perianal abscess, rectal cancer and other causes, may also lead to feel anal penis contraction.
4. Prostate diseases: prostate hyperplasia, prostatitis, prostate cancer and other diseases, may also cause feeling anal penis contraction.
Feeling anal penis contraction, there may be other reasons, need to go to the hospital in time to check, clear cause.