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Premature ejaculation (PE) is a condition in which a man ejaculates earlier than he or his partner would like him to. Premature ejaculation is also known as rapid ejaculation, rapid climax, premature climax, or early ejaculation.
PE is the condition in which a man ejaculates before his sex partner achievesorgasm, in more than fifty percent of their sexual encounters. Other sex researchers have defined premature ejaculation as occurring if the man ejaculates within two minutes of penetration; however, a survey by Alfred Kinsey in the 1950s demonstrated that three quarters of men ejaculate within two minutes of penetration in over half of their sexual encounters.Self reported surveys report up to 75% of men ejaculate within 10 minutes of penetration. Today, most sex therapists understand premature ejaculation as occurring when a lack of ejaculatory control interferes with sexual or emotional well-being in one or both partners
Most men experience premature ejaculation at least once in their lives. PE affects 25%-40% of men in the United StatesBecause there is great variability in both how long it takes men to ejaculate and how long both partners want sex to last, researchers have begun to form a quantitative definition of premature ejaculation. Current evidence supports an average intravaginal ejaculation latency time of six and a half minutes in 18-30 year olds. If the disorder is defined as an IELT percentile below 2.5, then premature ejaculation could be suggested by an IELT of less than about 2 minutes.Nevertheless, it is well accepted that men with IELTs below 1.5 minutes could be “happy” with their performance and do not report a lack of control and therefore would not be defined as having PE. On the other hand, a man with 2 minutes IELT may have the perception of poor control over his ejaculation, distressed about his condition, has interpersonal difficulties and therefore be diagnosed with PE.
Psychological factors commonly contribute to premature ejaculation. While men sometimes underestimate the relationship between sexual performance and emotional well-being, premature ejaculation can be caused by temporarydepression, stress over financial matters, unrealistic expectations about performance, a history of sexual repression, or an overall lack of confidence. Interpersonal dynamics strongly contribute to sexual function, and premature ejaculation can be caused by a lack of communication between partners, hurt feelings, or unresolved conflicts that interfere with the ability to achieve emotionalintimacy. Neurological premature ejaculation can also lead to other forms of sexual dysfunction, or intensify the existing problem, by creating performance anxiety. In a less pathological context, premature ejaculation could also be caused simply by extreme arousal.
One study of young married couples (Tullberg, 1999) reported that the husband’sIELT seems to be affected by the phases of the wife’s menstrual cycle, the IELT tending to be shortest during the fertile phase. Other studies suggest that young men with older female partners reach the ejaculatory threshold sooner, on average, than those whose partners are their own age or younger.
The emission phase is the first phase. It involves deposition of seminal fluid from the ampullary vas deferens, seminal vesicles, and prostate gland into the posteriorurethra.[5] The second phase is the expulsion phase. It involves closure of bladder neck, followed by the rhythmic contractions of the urethra by pelvic-perineal andbulbospongiosus muscle, and intermittent relaxation of external urethral sphincters.[6]
It is believed that the neurotransmitter serotonin (5HT) plays a central role in modulating ejaculation. Several animal studies have demonstrated its inhibitory effect on ejaculation. Therefore, it is perceived that low level of serotonin in the synaptic cleft in these specific areas in the brain could cause premature ejaculation. This theory is further supported by the proven effectiveness of selective serotonin reuptake inhibitors (SSRIs), which increase serotonin level in the synapse, in treating PE.
Sympathetic motor neurons control the emission phase of ejaculation reflex, and expulsion phase is executed by somatic and autonomic motor neurons. These motor neurons are located in the thoracolumbar and lumbosacral spinal cord and are activated in a coordinated manner when sufficient sensory input to reach the ejaculatory threshold has entered the central nervous system.[7][8]
Differential diagnosis
Premature ejaculation should be distinguished from erectile dysfunction related to the development of a general medical condition. Some individuals with erectile dysfunction may omit their usual strategies for delaying orgasm. Others require prolonged noncoital stimulation to develop a degree of erection sufficient for intromission. In such individuals, sexual arousal may be so high that ejaculation occurs immediately. Occasional problems with premature ejaculation that are not persistent or recurrent or are not accompanied by marked distress or interpersonal difficulty do not qualify for the diagnosis of premature ejaculation. The clinician should also take into account the individual’s age, overall sexual experience, recent sexual activity, and the novelty of the partner. When problems with premature ejaculation are due exclusively to substance use (e.g., opioid withdrawal), a substance-induced sexual dysfunction can be diagnosed.
Other ejaculation disorder types
Delayed ejaculation – Ejaculation takes a long time
Retrograde ejaculation – Semen flows from the prostate gland into the bladder rather than exiting out of the penis.
Inhibited orgasm in males