When you climax, it's normal for testicles to "ride up" into your body. In some males, an "overactive" cremaster muscle pulls one (or both) of the testicles all the way out of the scrotum up into the groin. This condition, called retractile testicle, may explain your experience.
Causes. Each testicle is attached to a muscle called the cremaster muscle. The cremaster muscle can contract inside the body causing the testicle to be pulled in and out of the scrotum; this is called the cremasteric reflex. This is a normal reflex seen in all males.
In the 1960′s, Masters and Johnson observed that the testicles elevate just before ejaculation and actually make direct contact with the body. They found that in about 85% of men the right testicle rises before the left one.
The cremasteric reflex is a superficial reflex found in human males that is elicited when the inner part of the thigh is stroked. Stroking of the skin causes the cremaster muscle to contract and pull up the ipsilateral testicle toward the inguinal canal.
Most men's testicles are about the same size, but it's common for one to be slightly bigger than the other. It's also common for one testicle to hang lower than the other. The testicles should feel smooth, without any lumps or bumps, and firm but not hard.
When a scrotum is empty this indicates an undescended testis. This occurs when a testis never moved down in to the scrotum as the male developed, or moves back up out of the scrotum and into the abdomen where it started.
Testosterone is the male hormone which is produced in the man s testicles. During puberty, when the production of the hormone increases, young men experience growth in the size of the testicles. But even at a later phase, when the production of testosterone spikes, the testicles can grow.
If your scrotum looks or feels like it's full of fluid on one or both sides, you may have a hydrocele. A hydrocele may be caused by inflammation or injury but it's not usually painful.
The main sign: You can't see or feel the testicle in the scrotum. When both are undescended, the scrotum looks flat and smaller than you'd expect it to be. Some boys have what's called a retractile testicle. It may move up into their groin when they are cold or scared but moves back down on its own.
The Male Reproductive System
The two testicles (or testes) produce sperm and the male sex hormone testosterone.
Calcifications: These are small structures in the testicle or along the main sperm pipeline (vas) can become hard, almost rock like. These are always painless and rarely need to be removed.
A "high-riding" testis is the hallmark of testicular torsion, which may be due to the shortening of the spermatic cord. A normal cremasteric reflex is rarely observed in patients with testicular torsion [6]. Additionally, the testis may have an abnormal (e.g., transverse) position in the scrotum.
As you get older, the muscles don't work as well, and your scrotum stays in a more slackened position. Combine that with your skin's natural decline in elasticity, and the sagging gets worse. If you're over 40, a hydrocele can also make your scrotum sag.
Being seated increases the temperature of the testicles by 2 °C and crossing your legs can increase the temperature of the testes by as much as 3.5 °C. And studies suggest that an increase in scrotum or testicle temperature can reduce both sperm count and quality.
While there is no definite age at which male ejaculation ceases, it has been suggested that it may happen when a man reaches his late 40s or early 50s. It is important to note, however, that this is not a universal rule and some men may continue to ejaculate at a later age.
No evidence suggests blocking sperm can cause harm or negative side effects. Unejaculated sperm is not harmful to the body and does not build up. The body reabsorbs sperm that does not leave through ejaculation. This has no side effects on sex drive or fertility.
Was this helpful? A male's body is constantly creating sperm, but sperm regeneration is not immediate. On average, it takes a male around 74 days to produce new sperm from start to finish.
Some studies suggest that moderate ejaculation (2–4 times per week) is associated with a lower prostate cancer risk. However, ejaculating more often doesn't mean your cancer risk drops even more.
Normal, healthy semen will be a cloudy white or gray liquid with a consistency similar to raw egg or a runny jelly. It will also have an alkaline smell comparable to bleach.
Guys start producing spermatozoa (or sperm, for short) at the onset of puberty. Puberty starts at different times for different people. Boys usually start puberty when they're around 10 or 12 years old, though some start a little sooner and others a little later.
1. If the man is in overall good health and has gone through normal development, the answer is yes, he can still have children. 2. Expensive tests do not always lead a physician to conclude why a man with one testicle may be delayed in fathering a child.
Each testicle is covered by tough, fibrous layers of tissue called the tunica. The outer layer is called the tunica vaginalis and the inner layer is called the tunica albuginea.