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Dyspareunia or painful sex and how lubricants can help reduce it by lowering friction during penetration.
Personal lubricants reduce friction and often prevent or lessen pain during penetrative sex; the main categories are water-based, silicone-based, and oil-based, each with trade-offs for condoms, toys,...
Chronic anal or rectal pain following anal intercourse can arise from a range of local injuries, pelvic‑floor dysfunction, infection, or less commonly neuropathic syndromes, and long‑term treatments a...
Larger penile circumference can increase friction, the likelihood of mucosal injury, and the chance that penetration is uncomfortable or painful for a receiving partner, particularly when lubrication,...