Slight pain in the glans may be caused by over-indulgence, allergy, glansitis and other reasons. 1. Over-indulgence: too much sex, especially newly married young people due to over-indulgence, so that the reproductive organs of the long-term congestion, may cause localized swelling of the glans and the symptoms of slight pain. 2. Allergy: If men have an allergic reaction to the condom, it is easy to trigger the glans micro-pain. At the same time, irregular use of medication on the glans can also cause allergies, making the glans slightly painful. 3. glansitis: germs attacked the mucous membrane at the glans leading to glansitis, causing mucous membrane congestion and edema, thus triggering glans micro-pain. In normal life, we should abstain from sex, not too violent and frequent. If the disease caused by the glans micro-pain, you should go to the hospital in time, under the guidance of professional doctors for targeted treatment.