概括地說，雄激素助長蛋白質的合成及擁有雄激素受體的組織的生長，睪酮的效用可以分為合成代謝及雄性化效應。合成代謝效應包括肌肉質量及力量的增長、增加骨質密度及強度、刺激線性生長及骨骼成熟等。雄性化效應則包括性器官的成熟（尤其是陰莖及胎兒陰囊的生成）、出生後（通常是在青春期）聲線的轉沉、鬍鬚及體毛的生長等。這些效應一般都是男性的第二性徵。

Testosterone may possibly stimulate reasonable conduct. For a single research, topics took aspect in a very behavioral experiment where by the distribution of an actual amount of money was decided. The foundations permitted the two honest and unfair gives. The negotiating spouse could subsequently accept or decrease the supply. The fairer the offer, the fewer probable a refusal by the negotiating associate.

維持性慾及勃起次數（濫用補充劑可能會導致疼痛性陰莖異常勃起、和性慾亢進）

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If you think you might have symptoms of low testosterone or surplus testosterone, discuss with your healthcare service provider. They will purchase some checks or send out you to a professional.

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Adult testosterone effects are more Obviously demonstrable in males than in females, but are very likely essential to both of those sexes. Some outcomes may possibly drop as testosterone levels might decrease within the afterwards many years of adult lifestyle.[36]

利用睾酮的男性化作用，跨性别男性（即由女性经由变性成为男性）会以睾酮作为替代，以维持至一般正常男性的睾酮水平。同样地，跨性别女性会使用药物抑制睾酮的生成，以让雌激素发挥效用。

過度超量或是長期的使用睪酮，會導致睪丸及男性生殖器萎縮，且導致永久性的陽痿。如果為女性，則會出現乳房萎縮、刺激毛髮過度生長、陰蒂肥大貌似小陰莖和长胡子等種種男性化現象。

Testosterone may additionally merely exaggerate or amplify present aggression; by way of example, chimpanzees who receive testosterone boosts grow to be additional aggressive to chimps lower than them from the social hierarchy, but will however be submissive to chimps higher than them. Testosterone Consequently doesn't make the chimpanzee indiscriminately intense, but alternatively amplifies his pre-existing aggression in the direction of decrease-rated chimps.[129]

If your healthcare provider suspects you could have irregular testosterone amounts, they may order a number Seen on Youtube of assessments, like:

在其他脊索動物的組織內也會有雄激素受體，而雄性及雌性對睪酮的反應也相當一致。在出生前雄性與雌性的睪酮劑量的差異，會導致在青春期或整個生命上的生物差異。

Misuse of such medicine can result in a number of disagreeable signs and lead to prolonged-term unsafe health problems, like blood clots, stroke, and possibly raise the risk of prostate cancer.

Sexual arousal and masturbation in Females make smaller boosts in testosterone concentrations.[sixty five] The plasma stages of varied steroids drastically enhance soon after masturbation in Gentlemen along with the testosterone stages correlate to People amounts.[66]