How long after donating blood can one have sexual intercourse?

Jun 23, 2025 Source: Cainiu Health

Dr. Liu Feng

Introduction

If a large amount of blood is donated, reaching 400 mL, or if the donor's physical condition is weak with poor recovery ability, symptoms such as dizziness and fatigue may easily occur after donation. The body requires a longer time to replenish the lost blood components and recover physical strength. In such cases, it is recommended to wait 5–7 days before engaging in sexual activity, ensuring sufficient time for recovery and reducing the risk of discomfort caused by physical exertion during intercourse.

Generally, it is recommended to avoid sexual intercourse for 1 to 7 days after donating blood. The detailed explanation is as follows:

If a large amount of blood is donated, reaching 400 milliliters, or if the donor has a weak constitution and poor recovery ability, symptoms such as dizziness and fatigue may occur after blood donation. The body requires more time to replenish lost blood components and recover physical strength. In such cases, it is recommended to wait 5 to 7 days before engaging in sexual activity, ensuring sufficient recovery time and reducing the risk of physical discomfort caused by the exertion involved in intercourse.

When the donated blood volume is smaller, only 200 milliliters, and the donor has good physical health without noticeable discomfort after donation, a quicker recovery is expected. In such cases, sexual activity may resume appropriately after 1 to 2 days. By this time, the body has largely replenished its blood volume and regained some physical strength, making moderate activity unlikely to cause adverse effects.

After donating blood, pay attention to your physical condition and schedule sexual activity only if there are no signs of discomfort. If any abnormalities occur during or after intercourse, take appropriate measures promptly.

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What Should You Eat After Blood Donation?

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Post-Donation Precautions and Dietary Restrictions

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How many milliliters of blood does a normal person donate at one time?

Under normal circumstances, a healthy individual usually donates 200-400 milliliters of blood per donation. Blood donation should be conducted at a正规 hospital. Before donating blood, one should ensure adequate sleep and maintain a light diet, avoid donating on an empty stomach, refrain from consuming alcohol or staying up late the previous night; during donation, one must truthfully inform the medical staff of their health status; after donating blood, pressure should be applied to the needle site for 10-15 minutes to prevent bleeding.

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How many milliliters are donated in one blood donation?

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How long after donating blood can I take a shower?

Under normal circumstances, you can take a shower 1-2 days after blood donation. After donating blood, it is important to get plenty of rest and avoid strenuous exercise and heavy physical labor, allowing your body sufficient time to recover. Nutritionally, you should maintain a balanced diet with foods rich in protein, iron, vitamins, and other essential nutrients, such as lean meat, eggs, milk, spinach, and similar items.

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Is there any risk in donating blood?

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Can I take a shower after donating blood?

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