Leg pain in summer is often caused by the following reasons: 1. It may be caused by the patient’s craving for cold. In the summer when the weather is hot, patients often have insufficient clothing for the lower limbs. If at this time the lower limbs are blown by the cool breeze of the air conditioner, or if they have been in contact with cold objects, they may cause local muscle spasm, or inflammation of the joints, which then causes pain. In addition, summer sweating is more, if the patient will lower limbs to the fan blowing directly, may lead to this part of the inflammation, and then cause pain. 2, may be due to excessive activity caused by. In the summer, people are often used to doing outdoor sports activities, at this time if they do excessive exercise of the lower limbs, it may cause pain, such as common knee injuries, many of which occur in the summer. 3, there may be lower limb joint inflammation, such as lower limb rheumatism, rheumatoid arthritis, gouty arthritis and so on. In the summer, people are often used to drinking beer and eating seafood, which may induce gouty arthritis at this time, so it may manifest as lower limb leg pain.