It becomes bloated when it is hot.

The causes of edema of lower limbs are pathological and functional. Your feet are swollen in hot weather, which may be caused by many factors, but most of them are caused by functional factors. The specific reasons may be as follows: 1. Posture factors: Long-term walking or standing, improper sitting posture, long-term sagging legs and long-term sedentary will all lead to poor blood circulation in lower limbs, so reducing the auxiliary effect of muscle exercise on venous blood return will cause edema. Improper shoes can also cause edema. This edema will subside after rest. When the weather is hot, edema will get worse. 2. Climatic factors: When the weather is hot, most of the peripheral blood vessels of the human body are in an expanding state, which makes the capillaries congested, so the skin, subcutaneous tissue and soft tissue are slightly swollen, which is the reason why they swell with heat and contract with cold. Physical factors: Female edema is also related to the role of estrogen in promoting the transfer of intravascular fluid to stroma. For women of childbearing age, edema can be seen in hands, breasts, buttocks, abdomen, lower limbs and other parts. Patients have the characteristics of poor posture adaptability, that is, fatigue and edema are aggravated after standing for a long time, and relieved after bed rest. This edema is related to the increase of renin activity in blood when standing upright, which leads to the increase of aldosterone. Therefore, edema can occur in drooping parts of the body, such as ankles, and edema can also occur in other parts when it is heavy. After rest at night, edema can be absorbed and disappeared. Overweight or obese patients, especially women, are prone to functional edema of lower limbs, and obese people have increased subcutaneous adipose tissue, which can weaken the support of superficial veins, make them easy to expand and reduce extravascular pressure; After losing weight and increasing exercise, edema can be improved or disappeared. 3. Local chronic injury: A history of ankle sprain in the past can cause soft tissue scar. When the weather is hot, due to tissue swelling, it is easy to oppress blood vessels and aggravate local swelling. If necessary, check ECG, B-ultrasound, liver function, urine routine and thyroid function. If there is no obvious pathological or organic reason, it can be considered as functional edema. Treatment: 1, stay in bed when edema is obvious; There should also be a rest time at noon to help the recovery of edema. 2. Salt restriction: the daily salt should not exceed 5g; Reduce the amount of drinking water appropriately; 3. Wear elastic socks and properly raise the lower limbs at night; 4, functional exercise: do easy leg exercises every day, often do simple foot exercises, eliminate tension and promote blood circulation. After long-term activities of legs and feet, you should also rest and massage. 4. The edema is obvious, and drug treatment can be given: spironolactone 20mg plus hydrochlorothiazide 12.5mg (half a tablet) twice a day, and hydrochlorothiazide can be taken continuously for 3 days and stopped for 3 days. After the edema subsides, the drug can be stopped without obvious side effects, and it is effective in treating edema. The causes of edema of lower limbs are pathological and functional. Your feet are swollen in hot weather, which may be caused by many factors, but most of them are caused by functional factors. The specific reasons may be as follows: 1. Posture factors: Long-term walking or standing, improper sitting posture, long-term sagging legs and long-term sedentary will all lead to poor blood circulation in lower limbs, so reducing the auxiliary effect of muscle exercise on venous blood return will cause edema. Improper shoes can also cause edema. This edema will subside after rest. When the weather is hot, edema will get worse. 2. Climatic factors: When the weather is hot, most of the peripheral blood vessels of the human body are in an expanding state, which makes the capillaries congested, so the skin, subcutaneous tissue and soft tissue are slightly swollen, which is the reason why they swell with heat and contract with cold. Physical factors: Female edema is also related to the role of estrogen in promoting the transfer of intravascular fluid to stroma. For women of childbearing age, edema can be seen in hands, breasts, buttocks, abdomen, lower limbs and other parts. Patients have the characteristics of poor posture adaptability, that is, fatigue and edema are aggravated after standing for a long time, and relieved after bed rest. This edema is related to the increase of renin activity in blood when standing upright, which leads to the increase of aldosterone. Therefore, edema can occur in drooping parts of the body, such as ankles, and edema can also occur in other parts when it is heavy. After rest at night, edema can be absorbed and disappeared. Overweight or obese patients, especially women, are prone to functional edema of lower limbs, and obese people have increased subcutaneous adipose tissue, which can weaken the support of superficial veins, make them easy to expand and reduce extravascular pressure; After losing weight and increasing exercise, edema can be improved or disappeared. 3. Local chronic injury: A history of ankle sprain in the past can cause soft tissue scar. When the weather is hot, due to tissue swelling, it is easy to oppress blood vessels and aggravate local swelling. If necessary, check ECG, B-ultrasound, liver function, urine routine and thyroid function. If there is no obvious pathological or organic reason, it can be considered as functional edema. Treatment: 1, stay in bed when edema is obvious; There should also be a rest time at noon to help the recovery of edema. 2. Salt restriction: the daily salt should not exceed 5g; Reduce the amount of drinking water appropriately; 3. Wear elastic socks and properly raise the lower limbs at night; 4, functional exercise: do easy leg exercises every day, often do simple foot exercises, eliminate tension and promote blood circulation. After long-term activities of legs and feet, you should also rest and massage. 4. The edema is obvious, and drug treatment can be given: spironolactone 20mg plus hydrochlorothiazide 12.5mg (half a tablet) twice a day, and hydrochlorothiazide can be taken continuously for 3 days and stopped for 3 days. After the edema subsides, the drug can be stopped without obvious side effects, and it is effective in treating edema.