Male Cryopreservation
Male fertility preservation is the process of freezing and storing sperm, for later use in assisted reproductive treatments.
What is Sperm Cryopreservation?
Sperm cryopreservation is a process of preserving sperm cells. It is also known as sperm freezing. After cryopreservation, semen can be stored successfully for several years.
Semen samples are collected and checked under a microscope to count sperm cells and check if they are healthy. These sperm cells are then frozen by fast freezing technique or vitrification and stored for future use. Depending on the amount available, the storage is done in thin tubes called ampoules.
When the individual is ready to have a pregnancy with his wife/ partner, one or more ampoules can be thawed (warmed to room temperature) for use sperms to fertilise the eggs.
Who should consider sperm cryopreservation?
Sperm cryopreservation is recommended for those men who –
- undergo a medical therapy that can affect their fertility, such as chemotherapy or radiation, or testicular cancer surgery.
- go through long-term medical treatment during which they are not allowed to conceive due to increased risks of having a baby with abnormalities
- Not be available at the time of the IVF/ICSI due to work or other important engagements.
- experience difficulty in producing a semen sample when required
- Produce a very low sperm concentration and therefore are advised to have a frozen sperm sample back up.
- are donating sperm
What is Testicular Tissue Freezing?
Testicular tissue freezing refers to a process where testicular tissue is removed surgically and frozen for future use. Later the tissue can be thawed to retrieve sperm.
The Takeaway
Men can preserve fertility by freezing and storing their sperm in advance, if for any reason they are at risk of losing their fertility. Also, if they want to donate sperm. The process is straight forward for those who can ejaculate. But for young boys or those who cannot ejaculate, there is some future promise and hope from testicular tissue cryopreservation. This modality currently remains an experimental treatment with no live births in humans so far.
Frequently Asked Questions
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How does sperm freezing work?
Sperm freezing, also called cryopreservation, involves collecting a semen sample and checking sperm quality under a microscope. Healthy sperm are then frozen using special techniques and stored in secure containers. When needed, the sperm are thawed and used for fertility treatments like IVF or ICSI.
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How long can sperm be frozen for?
Sperm can be safely frozen and stored for many years, even decades, without losing quality. Frozen sperm can still successfully fertilize an egg after long-term storage, as long as proper freezing and storage conditions are maintained.
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At what age should you freeze your sperm?
There is no fixed age to freeze sperm. Many men choose to freeze sperm in their 20s or 30s, when sperm quality is higher. It is also recommended before cancer treatment, surgery, or long-term medical therapy that may affect fertility.
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Can I get pregnant using frozen sperm?
Yes, pregnancy is possible using frozen sperm. Frozen sperm is commonly used in fertility treatments such as IUI, IVF, and ICSI. Success depends on factors like egg quality, the woman’s age, and the type of fertility treatment used.
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How much does it cost to cryopreserve sperm?
The cost of sperm cryopreservation varies by clinic and location. It usually includes semen analysis, freezing, and annual storage fees.
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Is freezing your sperm safe?
Yes, sperm freezing is considered safe and does not increase the risk of congenital disabilities. Frozen sperm has been used for decades in fertility treatments. Babies conceived using frozen sperm are as healthy as those conceived naturally or with fresh sperm.
