Like many aspects of sex, intensity of orgasm can depend on the individual as well as the situation. Here are some of the more common reasons orgasms might become less powerful:

When expecting couples are facing a high-risk pregnancy, they often wonder whether sexual activity is safe. A recent review of medical literature suggests there is little published data to guide them.

Taking vitamin D might improve a man’s sexual health, suggests new research in the International Journal of Endocrinology.

Benign prostatic hyperplasia (BPH) – an enlarged prostate – is very common in older men. It occurs when prostate tissue grows inward, sometimes squeezing the urethra. Some men with BPH have a difficult time urinating.

Many women find that sexual stimulation of their erogenous zones, such as the vagina, clitoris, and nipples/breasts, sets them on the path to orgasm. Keep in mind, erogenous zones on a woman’s body may vary between women. In addition, some women may reach orgasm even when they’re not in a typical sexual situation.

Multiple orgasms occur when a person climaxes more than once during a period of sexual activity. They are more common in women, but not all women have them.

Problems with blood vessels are a common cause of erectile dysfunction (ED). The term venous leakage refers to veins in the penis.

Some men find that they achieve quick, intense orgasms when having their prostate gland massaged, either by a partner or with a sex toy. The stimulation is direct, with a finger, a penis, or a device applied through the rectum. The targeted area is sometimes compared to a woman’s G-spot, and men who experience prostate orgasms sometimes feel them all over their body.

Typically, men can have between three and five erections while sleeping at night. These erections are not painful and are not a cause for concern. They are also not sexually-stimulated.

However, men with sleep-related painful erections (SRPEs) often wake up with an aching erection that may last for up to an hour. SRPEs can occur multiple times during the night and lead to sleep deprivation, daytime fatigue, anxiety, and irritability. 

For some men, marijuana use and sexual dysfunction could be linked.