Other side-effects can include alterations in the structure of the heart, such as enlargement and thickening of the left ventricle, which impairs its contraction and relaxation, and therefore reducing ejected blood volume. AAS such as testosterone also increase the risk of cardiovascular disease or coronary artery disease. Most of these side-effects are dose-dependent, the most common being elevated blood pressure, especially in those with pre-existing hypertension.
People often misuse these drugs to build lean muscle mass. Healthcare providers prescribe them for certain conditions, such as male hypogonadism and certain types of breast cancer. Furthermore, testosterone hasn’t been consistently shown to benefit premenopausal people with low libido (34), though postmenopausal people may benefit from short-term testosterone treatment (3,6). It’s been suggested that measuring levels of DHEA-S would be better for identifying low libido, but more research is needed (3,9). One study showed that the subcutaneous contraceptive shot with the progestin DMPA reduced total but not free testosterone after 26 weeks (two injections) of use. One study looking at the 52 mg levonorgestrel IUD found no impact on testosterone (28). That is to say, people with low testosterone don’t necessarily have low libido, and people with high testosterone don’t necessarily have high libido.
Without a perfect balance ratio between testosterone and estrogen, the ovaries may not work the way they should. What happens if the testosterone is not in the normal range? During puberty, this hormone is responsible for a deep voice, facial, chest, pubic hair, and the enlargement of the penis and testicles. The hormone level stays at the peak around puberty and decreases after 30. The hormone controls the prominent characteristics in men. Testicles are the primary, and adrenal glands are the minor producers of testosterone.
Testosterone is one specific type of an androgenic hormone primarily produced by the testicles in men; its role is crucial not only to drive libido but also bone density, fat distribution, muscle strength/mass amongst other things. They each impact different aspects within the body's endocrine system but both have significant effects on sexual development and function in males. On the other hand, high testosterone levels lead to disturbing sleep cycles, weight gain, irritating mood, oily skin, acne, and undesired hair growth. Other than these, androgens influence the healthy functions of muscles, reproductive tract, kidneys, liver, etc. On the good part, if the female body produces the right amount of androgens, it is a blessing. Excessive or high androgen levels are often responsible for facial hair growth, acne, prolonged period, and development of male characteristics.
Neither androgens nor testosterone should be used if you are currently using or have recently used gonadotropin-releasing hormone (GnRH) agonists. Both androgens and testosterone, as well as other hormone medications, can potentially exacerbate symptoms of certain conditions in some individuals. It’s also crucial to consider that prolonged use/abuse of synthetic androgens/testosterone can lead to serious health conditions like liver disease or cardiovascular issues. Both androgens and testosterone can have similar side effects, as testosterone is a type of androgen itself.
The following table is based on (recombinant rat) androgen receptor affinities. Yolk androgen levels in certain birds have been positively correlated to social dominance later in life. Androgens have potential roles in relaxation of the myometrium via non-genomic, androgen receptor-independent pathways, preventing premature uterine contractions in pregnancy. A study using male rats showed that testosterone may block social isolation, which results in hippocampal neurogenesis reaching homeostasis—regulation that keeps internal conditions stable. Social isolation has a hindering effect in AHN whereas normal regulation of androgens increases AHN.
Androgens promote the enlargement of skeletal muscle cells in a coordinated manner by acting on several cell types in skeletal muscle tissue. Exogenous androgen supplements can be used as a male contraceptive. MIH and androgens cooperate to allow for movement of testes into the scrotum. Under the influence of androgens, remnants of the mesonephron, the Wolffian ducts, develop into the epididymis, vas deferens and seminal vesicles. The mesoderm-derived epithelial cells of the sex cords in developing testes become the Sertoli cells, which will function to support sperm cell formation. At about week 6, epithelial sex cords develop within the forming testes and incorporate the germ cells as they migrate into the gonads. Dihydrotestosterone (DHT) and androstenedione are of equal importance in male development.

Gender: Female

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