Testosterone therapy is a medical treatment that involves the administration of testosterone to individuals with low levels of the hormone. It can be delivered through various methods, including injections, gels, patches, and pellets.

Common side effects of testosterone therapy include:

1. Acne or oily skin
2. Fluid retention
3. Breast enlargement or tenderness
4. Headache
5. Changes in mood or behavior
6. Sleep apnea
7. Decreased sperm count

Serious side effects that require immediate medical attention include:

1. Prolonged, painful erections
2. Blood clots in the veins
3. Breathing problems during sleep
4. Polycythemia (an increase in the number of red blood cells)

It’s important to note that testosterone therapy may also increase the risk of certain medical conditions, such as prostate cancer, heart disease, and blood clots, so it is important to talk to your doctor about the potential risks and benefits of the treatment.

Additionally, testosterone therapy may interact with other medications, so it’s important to inform your doctor of all medications and supplements you are taking before starting testosterone therapy.

It’s also important to have regular check-ups with your doctor while on testosterone therapy, as the treatment can affect your lipid profile, blood pressure, and liver function.

Testosterone therapy should not be used for the treatment of infertility, as the safety and efficacy of testosterone for this use have not been established.

It’s important to keep in mind that testosterone therapy is not appropriate for everyone, and it should only be prescribed by a qualified healthcare provider after a thorough evaluation of your medical history, symptoms, and current hormonal levels.