Lower back pain and coldness during ovulation is a normal physiological phenomenon, but it may also be a symptom of certain diseases. If this phenomenon persists or worsens, it is recommended to seek medical treatment in time.

This phenomenon may be due to a number of factors, including:

1. Egg discharge: After the egg is discharged from the ovary, it will die quickly and release a chemical substance that can stimulate the nervous system and cause back pain and a cold feeling.

2. Nervous system problems: Some people may suffer from neurological problems, such as multiple sclerosis or stroke, which may cause nervous system abnormalities, resulting in lower back pain and a cold feeling.

3. Inflammation: Certain inflammations, such as lumbar muscle strain or spinal arthritis, may cause lower back pain and a chilly feeling.

4. Other diseases: Other diseases, such as AIDS or hepatitis, may also cause back pain and a cold feeling.

If this phenomenon persists or worsens, it is recommended to seek medical attention promptly to determine the cause and treat it. Your doctor may order blood tests or imaging tests to determine the cause and develop a treatment plan. In addition, paying attention to a healthy diet and avoiding excessive exercise or excessive use of electronic devices can also help alleviate this phenomenon.