Hi, Welcome to Healthcaremagic.com. I had gone through your question I can understand your concern about your constipation. Clinically there is no proven effect of masturbation, you can t blame masturbation for your constipation (decreased bowl movements). There may be other cause associated with it, masturbation no effect on constipation, two important causes which causes constipation is Ignoring the call on time, Low fiber diet and disease like Piles or Chron s disease. You must take Hugh fiber diet like fruits, vegetables and reduce high protein like meat and other high protein foods. Take plenty of water too. Hope the answer to your query. Regards Dr Muzaffer.