Oral pills for females causes

Answer

### Step-by-Step Solution:

1. **Understanding Oral Pills**: Oral contraceptive pills are medications taken by females to prevent pregnancy. They are commonly referred to as "birth control pills".

2. **Composition of Oral Pills**: These pills generally contain synthetic hormones, primarily estrogen and progesterone. These hormones are crucial for regulating the female reproductive system.

3. **Mechanism of Action**:
- **Estrogen**: This hormone helps in blocking the normal process of ovulation. Ovulation is the release of an egg from the ovaries, and preventing this process is key to preventing pregnancy.
- **Progesterone**: This hormone acts on the pituitary gland, which is responsible for regulating the menstrual cycle. By influencing the pituitary gland, progesterone helps to inhibit ovulation and maintain the menstrual cycle in a way that prevents pregnancy.

4. **Effect on Menstrual Cycle**: The combination of these hormones alters the normal menstrual cycle, making it less likely for a woman to conceive. This is achieved by preventing ovulation and creating an environment in the uterus that is not conducive to pregnancy.

5. **Conclusion**: In summary, oral pills for females primarily cause the inhibition of ovulation and alter the menstrual cycle to prevent unwanted pregnancies.