Itching of the scrotum after ejaculation can be caused by a variety of reasons, including physiological reactions, infections, or other health problems. This usually requires further observation and diagnosis to determine the specific cause.

Scrotal itching during ejaculation may be related to physiological responses. During ejaculation, the body undergoes a series of physiological changes, including increased local temperature and accelerated blood circulation. These changes may cause abnormal skin sensations, such as itching. If accompanied by mild erythema or dry skin, it may be a reaction of the skin to the physical stimulation during ejaculation.

Scrotal itching can also be related to infection. Bacterial or fungal infections are common causes, especially if the itching is accompanied by redness, pain, or discharge. Fungal infections such as Candida albicans often thrive in moist, warm environments, and the increased temperature and humidity in the scrotum after ejaculation may provide a suitable environment for fungal growth. Another possibility is sexually transmitted infections, such as gonorrhea or non-gonococcal urethritis, which can also cause itching and discomfort.

Finally, if itching is accompanied by severe pain, fever, increased swelling, or lasts longer, this could be a sign of a more serious health problem, such as the spread of an infection or other complications, in which case you should seek medical attention promptly. Don't neglect personal hygiene; keep the scrotum area clean and dry, and avoid using care products that may cause allergic reactions. These measures will help reduce itching.
[Prevention Tips]
1. Maintain personal hygiene and clean the scrotum area regularly.
2. Wear breathable underwear and avoid tight clothing.
3. Avoid using skin care products that may cause allergies.
4. If persistent itching or other discomfort occurs, seek medical attention promptly.