（与附骨疽，参看。）
《灵枢》云∶发于股阴，名曰赤施。不急治，六十日死。在两股之内，不治，十日死。
《鬼遗》云∶阴疽发腿髀及阴股，始发腰强，数饮不能多，七日发坚硬肿胀，恶疼，心
烦躁，死不治。
或问∶大股之内，阴囊之侧，生毒何如？曰∶在左为上马痈；在右名下马痈；在肛门
傍，名肛门痈，俱属足太阳经湿热，七情不和，忧愤所致。宜服内补黄 汤、内托羌活
汤、十全大补汤。选用胜金丹、紫金丹。壮实者，一粒金丹、八阵散下之。呕吐不食，麻
木黑陷，膨胀，六脉微或代，冷汗不止，烦躁狂妄，小水不利，泄泻者不治。未溃之先。
宜服台阁紫微丸。按∶足三阳之脉，在外皆曰髀，足三阴之脉，在内皆曰股。今曰∶大
股之内，阴囊之侧，则属三阴经而厥阴为多明矣，乃以为足太阳，不亦谬乎？ 一人腿
内侧患痈，未作脓而肿痛，以内托黄 柴胡汤，二剂稍愈，又二剂而消。 一人腿内患
痈，漫肿作痛，四肢厥，咽咙塞，发寒热，诸治不应，乃邪郁经络而然也。用五香连翘汤
一剂，诸证少退，又服大便行二次，诸证悉退而愈。 一人年二十余，股内患毒日久；欲
求内消，诊脉滑数，知脓已成，因气血虚不溃，刺之脓出作痛，用八珍汤稍可，但脓水
清稀，用十全大补汤三十余剂而痊，盖脓出反痛者，虚也。 一僧，股内患肿一块，不
痛不溃，治托里二十余剂，脓成刺之作痛。予谓∶肿而溃，溃而反痛，此气血虚甚也，宜
峻补之。彼云∶气无补法。予曰∶正气不足，不可不补，补之则气化而痛自除，遂以参、 、
归、术、熟 ，治之两月余而平。大抵疮疡先发为肿，气血郁积，蒸肉为脓，故多痛。脓
溃之后，肿溃肌宽，痛必渐减而痛愈盛者，气血不足也。即丹溪、河间虚甚之说。
（此病与附骨疽有关，请参阅相关章节。）
《灵枢》记载：发生在股内侧的痈疽，名叫赤施。如果不及时治疗，六十天后会死亡。如果病变位于两腿内侧，不进行治疗，十天后会死亡。
《鬼遗抄》记载：阴疽发于大腿及阴股部位，起初表现为腰部僵硬，频繁饮水但饮水量不多，七日后患处变得坚硬肿胀，剧烈疼痛，心中烦躁不安，属于死证，难以治愈。
有人问道：在大腿内侧、阴囊侧面生毒疮，情况如何？回答说：生在左侧的叫上马痈；生在右侧的叫下马痈；生在肛门旁边的，叫肛门痈。这些都属于足太阳经湿热，以及七情不和、忧愤所致。适宜服用内补黄芪汤、内托羌活汤、十全大补汤。可选用胜金丹、紫金丹。体质壮实者，可服用一粒金丹、八阵散以攻下排毒。如果出现呕吐不能进食、麻木黑陷、腹部膨胀、六脉微弱或出现代脉、冷汗不止、烦躁狂妄、小便不利、泄泻等症状的，属于不治之症。在溃破之前，适宜服用台阁紫微丸。按语说：足三阳经脉，在外侧都称为髀；足三阴经脉，在内侧都称为股。现在所说的“大股之内，阴囊之侧”，显然属于三阴经，且多为厥阴经所主，却说是足太阳经，难道不是错误吗？
有一人腿部内侧患痈，尚未化脓而肿痛，服用内托黄芪柴胡汤，两剂后稍有好转，又服两剂后消散。
有一人腿部内侧患痈，漫肿作痛，四肢厥冷，咽喉堵塞感，寒热往来，各种治疗方法无效，这是邪气郁结在经络所致。服用五香连翘汤一剂，症状稍减，又服药使大便排出两次，所有症状全部消退而痊愈。
有一人二十多岁，大腿内侧患毒日久；想要通过内服药物消除病灶，诊察脉搏滑数，知道脓液已经形成，但因为气血虚弱无法自行溃破，针刺后脓出并感到疼痛，服用八珍汤后稍见好转，但脓水清稀，服用三十多剂十全大补汤后痊愈。大概脓出反而疼痛的，是因为虚证。
有一位僧人，大腿内侧患肿块一块，不痛也不溃破，用托里法治疗二十多剂，脓成后针刺感到疼痛。我说：肿胀而后溃破，溃破后反而疼痛，这是因为气血极度虚弱，应当峻补。他说：补气没有这种方法。我说：正气不足，不可不补，补益则气化功能恢复，疼痛自然消除。于是用人参、白术、当归、白术、熟地黄等药物治疗，两个多月后平复。
大抵疮疡初起表现为肿胀，是气血郁积，熏蒸肌肉化为脓液，所以大多疼痛。脓液溃破之后，肿胀消退，肌肉松弛，疼痛必然逐渐减轻；如果疼痛反而加剧的，是因为气血不足。这就是丹溪、河间关于虚损严重的说法。
(This condition is related to *Gu Ben Ju* (Deep-rooted Abscess); please refer to the relevant section.)
The *Ling Shu* (Spiritual Pivot) states: An abscess occurring in the medial thigh is named *Chi Shi* (Red Spread). If not treated urgently, death will occur within sixty days. If located in the medial aspect of both thighs and left untreated, death will occur within ten days.
The *Gui Yi* (Ghost's Legacy) states: *Yin Ju* (Yin Abscess) erupts on the thigh and medial groin. Initially, it presents with stiffness of the waist, frequent thirst but inability to drink much. After seven days, the area becomes hard, swollen, and suffers from severe pain, accompanied by mental restlessness and irritability. This is a fatal condition that is difficult to cure.
A question was asked: What is the prognosis for a toxic sore arising in the inner thigh, beside the scrotum? The answer is: If it occurs on the left, it is called *Shang Ma Yong* (Horse-riding Abscess); if on the right, it is called *Xia Ma Yong* (Dismounting Abscess); if beside the anus, it is called *Gang Men Yong* (Anal Abscess). All these belong to damp-heat in the Foot-Taiyang Bladder Meridian, caused by disharmony of the Seven Emotions and feelings of sorrow or indignation. It is suitable to administer *Nei Bu Huang Qi Tang* (Internal Tonification Decoction with Astragalus), *Nei Tuo Qiang Huo Tang* (Internal Support Decoction with Notopterygium), or *Shi Quan Da Bu Tang* (Comprehensive Great Tonifying Decoction). One may select *Sheng Jin Dan* (Golden Pill of Victory) or *Zi Jin Dan* (Purple Gold Pill). For those with robust constitutions, *Yi Li Jin Dan* (One-Pill Golden Pill) or *Ba Zhen San* (Eight-Array Powder) can be used to purge pathogenic factors. If symptoms such as vomiting and anorexia, numbness with blackening and sinking of the lesion, abdominal distension, faint or intermittent pulse, incessant cold sweat, mental agitation and madness, difficulty in urination, or diarrhea appear, the condition is incurable. Before ulceration, *Tai Ge Zi Wei Wan* (Imperial Purple Pill) is suitable. Commentary: The meridians of the Foot-Yang are termed *Bi* (Thigh) on the lateral side, while the meridians of the Foot-Yin are termed *Gu* (Medial Thigh) on the medial side. Now, "inside the large medial thigh, beside the scrotum" clearly belongs to the Yin meridians, predominantly the Jueyin Liver Meridian. To attribute it to the Foot-Taiyang is indeed erroneous.
Case 1: A patient suffered from an abscess on the medial aspect of the leg. Before suppuration, there was swelling and pain. After taking *Nei Tuo Huang Qi Chai Hu Tang* (Internal Support Decoction with Astragalus and Bupleurum) for two doses, there was slight improvement; after another two doses, the swelling resolved.
Case 2: A patient suffered from an abscess on the medial leg, presenting with diffuse swelling and pain, cold extremities, a sensation of blockage in the throat, and alternating chills and fever. Various treatments failed. This was due to pathogenic factors stagnating in the meridians. After one dose of *Wu Xiang Lian Qiao Tang* (Five-Aromatic Forsythia Decoction), symptoms subsided slightly. After administering medicine that induced two bowel movements, all symptoms disappeared, and the patient recovered.
Case 3: A man in his twenties had suffered from a deep-seated infection in the inner thigh for a long time. Seeking internal resolution, his pulse was slippery and rapid, indicating that pus had formed. However, due to deficiency of Qi and Blood, it could not ulcerate spontaneously. After puncture, pus drained and pain occurred. Taking *Ba Zhen Tang* (Eight Treasure Decoction) brought slight relief, but the pus was clear and thin. After taking more than thirty doses of *Shi Quan Da Bu Tang* (Comprehensive Great Tonifying Decoction), he recovered. Generally, pain following the drainage of pus indicates deficiency.
Case 4: A monk had a lump on the inner thigh that did not hurt nor ulcerate. After more than twenty doses of interior-supporting treatment, pus formed, and puncture caused pain. I stated: Swelling followed by ulceration, and then increased pain, indicates extreme deficiency of Qi and Blood. Profound tonification is required. He replied: There is no method for tonifying Qi. I said: When Zheng Qi (Upright Qi) is insufficient, it must be tonified. Tonification restores Qi transformation, and pain will naturally cease. Thus, I treated him with *Ren Shen* (Ginseng Radix), *Bai Zhu* (Atractylodis Macrocephalae Rhizoma), *Dang Gui* (Angelicae Sinensis Radix), *Bai Zhu* (Atractylodis Macrocephalae Rhizoma), and *Shu Di Huang* (Rehmanniae Radix Praeparata). After more than two months, the condition resolved.
Generally, sores and ulcers begin with swelling, which is caused by the stagnation and accumulation of Qi and Blood, steaming the flesh into pus; therefore, they are mostly painful. After the pus drains, the swelling subsides, and the tissue relaxes, so pain should gradually decrease. If pain intensifies instead, it is due to deficiency of Qi and Blood. This aligns with the theories of Danxi and Hejian regarding severe deficiency.