Stomach pain during intercourse can occur for several reasons, ranging from benign to medical. The most common causes include deep penetration that puts pressure on internal organs, particularly when the bladder or colon is full; muscle tension from anxiety, stress, or not being sufficiently aroused; and gas or bloating in the intestines that gets aggravated by movement and pressure. For women, pain may stem from endometriosis, pelvic inflammatory disease, fibroids, or ovarian cysts—conditions where internal lesions or growths cause tenderness. Men may experience pain from prostatitis or other urological issues. Positioning matters significantly; certain angles create more abdominal pressure than others. The pain might also result from insufficient lubrication, which increases friction and tension, or from bowel-related issues like IBS that flare during physical activity. Emotional factors play a role too—anxiety and pelvic floor tension can trigger discomfort. To address this, try different positions that feel less pressuring, ensure adequate arousal and lubrication, empty your bladder and bowels beforehand, and manage stress through relaxation. If pain is sharp, severe, persistent, or accompanied by other symptoms like bleeding or discharge, consult a healthcare provider to rule out infections, structural problems, or gynecological/urological conditions. Keeping communication open with your partner about comfort and pacing is also important.