Women’s knees are sore for two main reasons: 1, due to excessive activity or long squatting or sitting, resulting in excessive fatigue of the knee muscles and surrounding soft tissues, resulting in strain, there will be more local metabolites such as lactic acid, which will stimulate the peripheral nerves around, there will be symptoms of soreness. 2, the knee joint is cold, after the cold muscles and surrounding soft tissues will become tense, blood circulation will also be reduced, resulting in more local metabolites, not easily metabolized, and the arterial blood supply will also be reduced, the local energy, electrolytes, etc. will also be reduced. Blood circulation will also decline, resulting in more local metabolites, which are not easily metabolized and accumulate, and the arterial blood supply will also decrease, and the local energy and electrolytes will also decline accordingly, which will easily lead to the aggravation of acidity. Therefore, after this situation, it is best to keep the knee joint relaxed, rest, avoid continued fatigue, more warm water bags warm compresses, improve blood circulation, relax muscle tissue, can promote venous reflux, accelerate metabolism, and help relieve symptoms.