>>297341Obsessive Compulsive Disorder.
can make people have repeated, unwanted thoughts that cause anxiety, and they may feel like they need to do certain things (like rituals or checks) to feel "safe" or to prevent something bad from happening. When it comes to masturbation, OCD might cause stress or worries about performance, germs, or even intrusive thoughts that interfere with enjoying the experience.
In some cases, people with OCD might have trouble focusing on the moment or feel pressure to do certain things a specific way. This can lead to difficulty relaxing, which might affect physical responses like being able to reach orgasm. The anxiety and compulsive thoughts can block the flow of the experience, making it harder for someone to feel comfortable or let go.