If male is unable to inseminate the semen into vagina then which procedure is used.

Answer

**Step-by-Step Solution:**

1. **Understanding the Problem**: The question asks about a procedure used when a male is unable to inseminate semen into the vagina. Insemination is the process of introducing sperm into the female reproductive tract for fertilization.

2. **Identifying the Procedure**: The procedure used in such cases is known as **Artificial Insemination (AI)**. This is a medical technique that assists couples who are facing difficulties in conceiving.

3. **Understanding Artificial Insemination**: AI is a type of Assisted Reproductive Technology (ART). It is specifically designed for couples who are unable to conceive due to various reasons, including male infertility.

4. **Process of Artificial Insemination**:
- **Semen Collection**: Semen is collected from the male partner or a sperm donor.
- **Semen Preparation**: The collected semen is then washed and centrifuged. This process helps in isolating motile sperm from the semen.
- **Insemination**: The prepared motile sperm is then introduced into the female's reproductive tract, either into the uterus or the vagina.

5. **Fertilization**: Once the motile sperm is introduced, they can swim towards the fallopian tubes where an egg (ovum) is present. If a sperm successfully fertilizes the egg, a zygote is formed, which can develop into an embryo and eventually a baby.

6. **Conclusion**: Therefore, if a male is unable to inseminate semen into the vagina, the procedure used is **Artificial Insemination (AI)**.

---